Finding the right dosage of Trimix

Since my RARP was non-nerve sparing, I'm permanently impotent. I've tried everything with no usable results, so now it's Trimix. I started at 0.1 ml with positive effect, but not enough. Today we tried 0.15 ml, and while it worked better, it was still inadequate. Of course I have a lot more titration before I get to 0.5 ml. My question is, what dosage did you find effective and once you found the dosage that worked, did that same dosage work with regularity?

I still have stress incontinence, but a new issue seemed to be that with an erection, I leak some - so I guess a condom is required?

Atleast the needle in the penis is not very painful! The bright side I guess?🤣