I'm inclined to disagree, on the nature of the term Transcendence, since this isn't about improving the spiritual aspect, but solely on the physical. Now, I know you mentioned that this is "like" transcendence, and even suggested a rename based on it, but that's not what this class is about.
The synthevolver isn't about gaining inner peace or achieving spiritual one'ness with the grand banana. It's about improving on a design that, in their minds, creation left unfinished. It's conscious evolution or physical improvement, it's about grafting metal and iron onto flesh and bone to embrace the perfection of steel. It's about removing your eyeballs and replacing them with elf eyes because of the inherent perfection of the elven form.
I don't mean to shoot down your suggestion, and it sounds like a lot of who-hah for a simple word, but that simple word has the potential to completely re-imagine what the class is about. It takes it from folks who are out to improve on an imperfect design for their own betterment, to something of a pseudo-religious cult. And I'll say it again, I mean no disrespect to something you believe in. I'm sorry if it comes off that way, I just really don't think that applying even the illusion of metaphysical transcendence has any place in this class, based on the design thus far.
Total aside: Your avatar is pretty boss.