The perk glass half full is useless on the Grasp of Malok. 3 burst kill 1st half of mag 3 burst kill 2nd half of mag (no ammo left for another 3 burst kill) Having glass half full does not get you another kill from the mag nor does it reduce the burst to 2. Your better with outlaw or feeding frenzy to speed the reload. I have grasps with both these perks and the reload is almost instant. Pair outlaw or feeding frenzy with pulse loader on your gauntlets and the reload is the fastest I've seen.