Double Body Visualizations, DILDs and Omnilucidity (=lucid in every dream)
- 1. Imapact on DILDs
Let's say you have practiced the double body visualizations a lot and are able to have OBEs and lucid dreams during the day whenever you want, now it would be nice to also be lucid during your dreams during the night, in order to not waste that time. I think an average person dreams around 90 minutes each night, if you sleep longer, then that gets exponentially more. And once you can dilate time in your lucid dreams, you will be lucid far longer than these 90 minutes. John Kreiter says that the more solid your visualization double body is, the more likely you are to get lucid. He gives two reasons:
"Firstly, a person is able to create a more cohesive and solid dreaming body [=visualization double body]. This is important because it is this dreaming body, that becomes your active body when you are in a dream. When you are dreaming, you leave behind the physical body, comfortable and safe in your bed hopefully, and engage a new body; a dreaming body that is far more powerful than the physical body that you left behind. By engaging in the act of creating, developing, and solidifying your Dreaming Double, or energy body, you help to consolidate your dreaming form in the dream state. The more stable that your dream form becomes, the easier it is to wake up in the dream, and the easier it is to move and manipulate, your self, and your dream environment once you become lucid." "The second, and perhaps most important thing that the creation of the Dreaming Double does, is that it helps to create a deep bond between the ego consciousness and the dreaming body. In this way the ego consciousness, which is your waking self, can then be linked in a way to the dreaming consciousness. This link, this expansion of the ego self, makes the possibility of becoming lucid in a dream much more likely. This is so because dream lucidity, that is, becoming awake within a dream, is really the act of joining the dreaming self, and the waking self."  
- 2. How long does it take?
I think this is true, but it takes a lot of time. I have done roughly 250 hours of the double/etheric body visualizations and currently I become lucid (DILDS) several times a week (9 times in the last 2 weeks). But I think it's also because of the other things I do, many RCs, WBTB, many alarm clocks, dream journal,.. 
I would estimate that without the visualizations I would have become lucid perhaps 1-3 out of the 9 times. But without the other things (and only the visualizations) I would perhaps have become lucid 0-1 times. So it's a mixture of both. One thing I believe is because of the visualizations, is, that I usually become lucid immediately after I have a doubt. So the mere doubting or wondering whether this is a dream or not usually makes me lucid. Whereas, before I started doing the visualizations, most of the moments I wondered whether I was dreaming didn't make me lucid. (But I think the fact that I am now a bit more experienced due to more LDs plays a role too)
Let's  say you spend 30-45minutes each day to have DILDs (RCs, dream journel, quick WBTBs,..) then that are my time frame guesses:
0.2% lucidity (=0.2% of your dreams are lucid, that makes around 10 seconds each night if you have the average amount of dreams of 90 minutes). After 1-2 months of doing these basic things and without the double body visualizations  0.5% lucidity (half a minute on average daily) after 200 hours of double body visualizations (+ doing the basic stuff daily) 5.5% lucidity (=5min) after 500 hours of double body visualizations  28% lucidity (=25 min) after 1000 hours of double body visualizations 80+% lucidity (=70+ minutes) after 2000 hours of double body visualizations. Now it's all about how good your dream recall is. All of that obviously largely varies,  depending on many factors like how much effective effort you put into the basics each day, natural abilities, how much time a day you do the visualizations,...
The duration of lucidity is so exponential, largely because the more experience you have of being lucid, the longer you manage to stay lucid. But of courses also because of the visualizations, that means, even if the duration of each LD wouldn't increase, the duration you are lucid each night would still increase exponentially. So 2 exponential reasons.
 
- 3. Time Dilation
I believe the 1000 hours mark is the big turning point. Firstly, you will probably be able to have OBEs whenever you want or at least when you are in REM (as I mentioned in previous posts), that means now you really begin to feel and enjoy the benefits of the many visualizations. Secondly, around 28% of your dreams will be lucid (DILDs) (if you also do the other DILD techniques) which makes around 25 minutes a day. And I believe this is around the minimum you should be lucid if you want to learn how to dilate time. I wrote about time dilation in the post/thread "lucid dreaming as a tool for enlightenment". There I wrote that time dilation in lucid dreams might be possible, but now I think the likelihood that it is possible is very high. So once you start working on time dilation (spending all your lucid time on time dilation) then I guess it will take 2-5 months till 25 mins are like 2 hours (factor 5). And then all happens very exponential. The more you can dilate time, the more time you spend in lucid dreams, which makes you more and more likely to get lucid and thus increases the this-world time you are lucid. And the more time you spend in LDs, the more time you have to work on time dilation. So here are two positive feedback loops. Therefore, I guess that only 1 month later, you will have omnilucidity (95-100% lucidity) and can spend as much time dreaming as you spend awake.
And if you spend that much time in lucid dreams, thus in your dream body, which is your double body ( Your dream body is usually way more vivid than your double body during visualizations, because you are in sleep paralysis.) , your double body during your normal double body visualizations should therefore also get more and more solid, which makes it more easy to have OBEs and lucid dreams during the day, which then also allows you to spend more time on working on time dilation. It's all connected and positive-feedback loopy.
Perhaps this is all fantasy or perhaps not, I don't know, but we will see
- 4. Some more things on getting DILDs
 
"In actuality kinesthetic visualization can be far stronger than a picture in the mind’s eye, because the certainty and the power of such feeling visualizations, is incredibly powerful." I think that the part of the visualizations where you feel your double body are the most important to having DILDs.  
"there is a definite link between dream work and the techniques discussed in the Overcoming the Archon Through Alchemy book: the more energy that you are able to acquire or not lose to the Archonic forces, the easier that your dreaming will become." So if you also do the techniques of this or his Magnum Opus book, then this will also slightly increase your chances to have DILDs All the quotes in this post are by John Kreiter from that blog post:
 https://johnkreiter.com/how-to-have-lucid-dreams-even-if-you-are-not-a-good-visualizer/