How is your bladder/kidneys with all that FXE?
As far as ROA i prefer sublingual FXE to snorted, but my doses are pretty low. Under 50mg.
I personally don't use it for recreational purposes, makes me feel edgy at those doses. I have never felt truly comfortable on any dissociative, there is always a weirdness to it that I can't shake. Like a sense of "man i feel weird", which adds a dysphoria/anxiety to the experience. Oddly, I got the least sense of this from IV ketamine, which actually felt quite cozy. But was never a fan of IM. IM ketamine is more psychedelic feeling than IV ketamine, whereas IV has more of a narcotic-like feel, almost like an opioid. You just sort of sit there stunned, and sweating with an insane body high, but I found the mental effects are surprisingly mild in proportion to the body high.
Nitrous oxide of course is also quite cozy too, but I've found that when you really push the limits it has a weird edge to it too. Was a big fan of nitrous though and a heavy user.