Psi use
From Neocron Wiki
PSI Use(PSU)
Psi use is a Intelligence subskill that affects Handling of PSI modules, PSI energy pool and PSI energy regeneration rate.
Every 10 points in PSU, maximum PSI energy is increased by 21. The energy regeneration is increased by an additional 0.3 per second. Maximum energy pool stacks with Psi power.
PSU influences 30% of PSI modules Handling stat.
PSU is mostly an Intelligence dump for Monk, but also one of more important to increase, as it affects reticle, energy pool and energy regen more than Psi power. Brotherhood of Crahn Epic reward and their Hacknet faction database gauntlets, Gaya Tacholytium Gauntlet and Crahn Amplifier Gauntlet CAG 3 provide high bonuses to PSU and PPW greatly increasing energy pool.