The biggest factor is, How OCD (or anal) do you want to be.
4PS's I'd like to buy your 22LR that shoots at 3300 fps. from you. And it wasn't a SC. I see some of your data the speed increased on the third shot. Velocity does NOT tell you precision or accuracy of POI. Often slower means more accurate.
There is no response to frothing... that won't create more frothing.