Here’s a variation on John Riedhart’s methods for Straightening a bowed stud. As shown in the drawing, make a kerf in the edge of the stud at the apex of the bend. Use a thin blade for this so the stud will be able to close on itself when pressure is applied. As you apply that pressure, screw a pair of 1×4 splints to the sides of the stud. This way you can easily adjust the splints if you don’t get it right the first time. The splints will restore the stud’s rigidity and replace the compressive strength lost by a sawcut that doesn’t completely close on itself.
Tore J. Wubbenhorst, Lindenhurst, NY