A strapping idea
The easiest way to keep the bottom plate of a framed wall from walking when it is being raised is to toenail it into the subfloor. The nails bend easily as you lift the wall, and the bottom plate usually remains in the immediate neighborhood of its intended layout.
A more secure system uses the strapping that binds lumber loads. Cut it into 12-in. pieces and nail one end to the underside of the bottom plate. The other end should run under the wall and be nailed into the subfloor. Concrete nails will pierce the stuff, or you can abuse your 2/32 nail set and start a hole. The strapping can be left in place and covered by the finish flooring.
M.F. Marti, Monroe, OR