Technically Conditioning itself doesn't do anything. The VEATs have slightly higher base Regen and Recovery as part of their AT mods: 100% HP in 3min 20sec, versus 4min for all other ATs, and 105 endurance generated per minute, versus 100 for all other ATs. That puts their Regeneration 20% higher than base, and Recovery 5% higher than base, well over the 1% mark. And those boosts are multiplicative with other Regen and Recovery buffs, which means those effects are even stronger when used on VEATs.