Definitely agree, no class should ever be punished for ping, only for bad play.
I had 4 charges on a 20 second timer or so for consistensy with other classes like Warrior's new Inner Release or Reaper's Enshroud gauge, so somewhat on the right idea.
Hmm, I could see something like that if it could stack for some time actually...like getting up to 4 free stacks maximum to unload at will on top of the cooldown, although I do at least like having 2 charges minimum to avoid overcapping.
My document also did that but instead of 6 times, I had it more like 3 or 4 so you don't have to use Heat Blast to trigger it within a reasonable time, and so that Blast Charge was still viable for use. Having AoE damage though is something we should already have so it's a little curious how we haven't had it yet...
I could see the Collider change, but I keep it to requiring 100 Battery solely to avoid having to spend at 50 or else it's nonoptimal, the 100 Battery for 1 charge makes it easy to use twice in a row at full power(2 max charges to unload with Marksman's after all) makes for some freedom. That's really it though.
I don't really want it to share with Hot Shot but to be a thing of its own personally. It is an interesting bit of interaction but the buff method or making it a stacking dot makes it more viable for single target and groups.
These ideas aren't ones I'm 100% opposed to though, if they did any of these that would already be a step in the right direction.