I'm probably not the one to answer this question. I'm still very inexperienced. What I know of is: more power( I assume from a larger powerplant), nicer checkered stock, rubber recoil pad, same trigger as my 34, and the blueing looks really close. -same stupid scope rail, though. This one has a chopped barrel and umarex barrel weight, in addition to the CDT tune, macari spring...
I couldn't compare to a tuned 34 though. -not yet anyway