Re: How hard can I hit electronic drums???
I'm wouldn't say I'm a particularly hard-hitter, but with e-drums there's no need to be (I understand that it's just your playing style though).
I use mesh heads and play metal (so hard hitting is implied) and haven't had any issues, having said that I do use light sticks (7A).
Not familiar with the Hart kits but my only concern would be that the cones MAY become damaged over time with constant heavy strikes and may need to be replaced. If they're as tough as the Roland mesh pads though you should be OK.