Hell, I'd drop the insta-kill on impact for top tree to get quicker activation and leave the delay for the insta-kill on bottom tree (no change to multi-shot, no delay for the single shot but the tether activates faster). I'd be happy with that trade and it would still give the option as well as help differentiate between the DPS (bottom tree, multi-shot that drops tiny, short-lasting tethers) and the support class (top tree with the 1 big tether that lasts longer)