I think this is the essence of choosing from whats out there, something you can (get) tune(ed) hot (enough) for effortless breathingas the legend elite was also a rental, the issue is that most rental regs are not tuned "hot" for the maximum performance because the shops don't want complaints about freeflowing. if you were comparing against the newer Zeo or Delta 5 oceanic regs, you won't see much of a difference if they are tuned down to similar specs as they have a similar balanced 2nd stage design.
a reason I really love the g260 (regardless of 1st stage, besides cold requirements); it has a micro adjustment to further enable good cracking effort
A dunk test is a good skill to pickup to keep 2nds at peak (even if you don’t wanna go the diy route)