Alan Smithee wrote:
What's the most efficient way to knock out drywall? I need to demo a couple
of walls down to the studs. Thx

There is no 'neat' way to do it. It is a messy job and the rock is
going to come off in small pieces. Punch a hole and start yanking. If
it was screwed, you are into a slow process of removing them, nails
aren't too bad but it is still tedious. Worst part of the job is the
cleanup.

Harry K