JTxpress: I think the ball spot idea is the best. Keep it simple, the more you move the dot to the right, the more slice you get on the shot.
I agree, but please let us move the dot on the golf-ball with the ARROW keys on our keyboards, too! There are four ARROW keys on every keyboard (UP, DOWN, LEFT, RIGHT), exactly as many as are needed to set up top-spin, back-spin, draw & fade. When you need to drag that dot on the golf-ball with your mouse every time, It certainly slows down the game, especially multi-players. Keyboard shortcuts will save time for everyone. (Let us also hit the ball with the SPACEBAR, as Tiger Woods Online does, and the mouse-slide could likewise be emulated by a key combination, such as CTRL+SPACEBAR.)