Are those just cold cutters? I tried that here once but with all the rocks they just ejected. Probably work better by you. Carefull, I know a guy with some gnarly scars from those things. Don't run anyone or there subframe over.
I had 3/4" screws and they just tore out on the rocks. It's real studs here if you want to play in winter, and they even get abused. Tough getting the right amount if snow.