OK here is my mast raising drill. Rotate 90 deg, step and pin, rest mast with diamond wire in rear cradle, wench strap connected to port trap wires, I stand on back of trap guiding while wencher grinds. The swing problem develops when its close to the cradle. Going up is not so bad as the wencher just cranks it through the problem area. The problem with using the stabilizer is that I'm already using the port wires for raising and the mast swings one way, to stbd. It used to be annoying and something to watch for but when I screwed ball down, as soon as mast left cradle it really jumped strong to stbd and I had to fight it hard. This symptom got way worse after screwing ball down tight(3-4 whole turns)