Yeah, it is pretty powerful, although enough shell and slime will stop the shots. 200 Poison stops info shots, and shell will stop venom, but it does fire rather a lot of venom...
The shootval method isn't a precise instakill - I've seen bots with a lot of energy last a little while, but it is very potent.
Possibly an F2 version of Pacifist would be interesting. It would be much more difficult to make, but you could use venom and info shots to achieve a similar result, the only problem being that shell and slime would cancel out venom and info shots...
I'll be interested to see how well version 2.1 does in F1