There are no autos in PvP now, Stun Gun triggers Overheat which is a 10% buff thus damage will naturally be higher if and when you overheat. Unless you overheated on each sample, it's no good.

Look, just do what you like. I mean, wrong is wrong, but you won't be convinced besides. If you think wasting a cc on a stationary objective that doesn't hit back and poses no threat is such a great idea, be my guest. Might work for Shatter, but that wouldn't fly in any other mode, and is overall a waste of a good tool just for 10 seconds of 10% more damage that what you'd otherwise be able to sustain indefinitely, and without wasting your aoe stun for.