MDMA: testing, fentanyl, safety, feedback, etc.

[Matt23]

I'm wanting to try mdma as a therapeutic strategy.  

I'm researching various safety precautions and am wanting to hear what you guys think in general and on a couple specific points.  I'd love to hear your personal experiences and stories as well.

The first specific thing I'd like some feedback on is whether or not mdma has a history of being laced with fentanyl.  To my knowledge, not really.  But I'm not about taking chances with that one.  I'm looking into several drug testing kits.  They aren't cheap.  It costs more to add a fentanyl kit to the mix.  Do you think it's worth buying an additional fentanyl test on top of the other tests (marquis, mecke, simo 's A and B

Main questions (hopefully more clear and organized):

How high of a risk do you think there is of having fentanyl in the MDMA (I live in Vancouver Canada if that helps)?

Which if these test kits below do you think is best and which do you think is least necessary?

Do you think it's worth buying an extra fentanyl test, irregardless of which test kit below I buy?  Or, is there a kit below that you think would be sufficient in testing for fentanyl as well?

• Only Marquis (for MDMA).
• Marquis, Mecke (for opiates), Simon's A and B.
• Marquis, Mecke, Mandelin (for ketamine & PMA).

Thanks for any tips, advice, and thoughts.