The fundamental difference here is:
- This new AOE attack functionality is (even if we expand it out to other attacks) only on a small number of specific Ranged Attacks, which each have cooldowns, effects, and damage multipliers that we can use as balance tools; just by virtue of cooldowns, they represent a small percentage of your total attacks over time.
- Improved Precise Shot applies AOE to every attack, activated or otherwise, and represents 100% of your total attacks over time when turned on.
What you did to IPS was and still is an abomination, while casters were obliterating rooms you decided it was cool to kill the only ranged AOE at that time that was feat heavy for non-ranger missile builds. Not only did you have the 20% effect the base damage you had it effect all the add ons, it was rude and has never been forgotten by me and never will be, this single action started the closing of my wallet to this game, so good choice there.
You should remove the 20% as it has little impact to groups and truly only impacts solo play. Although i am not sure i would spend the feats to get it anymore on most non-ranger builds.
Also as nice as it is that you are adding an AOE missile attack, trying adding some that work on other missile builds besides rangers/bow builds.
Signed
The Narc