Except most builds didn't work like the current Psi. Like I said, imagine exhausting your entire assault rifle's durability for whenever you're reloading your ammos or changing your ammo types, that's how the current psi works for whenever you're changing your innervation setups (I'm pretty sure someone else already said this). Also, most builds could easily change their belt arrangement with whatever combat utilities they need ('nades, throwing knives, special bolts, cloaking devices etc etc), or put on specific headbands/armor-clothing/boots, or switch their weapons....at absolutely NO costs at all, AND they could do it in combat, with AP costs...which can be reduced with Quick Pockets (and further reduced with speccing into it). Not for psi with the current psi system, oh no. You CAN'T switch innervation setup in-combat, and when you get out of combat and do switch, you're exhausting ALL of your psi reserves and ALL of your psi points.
