on grand slam tennis, the only way I can teel the WM+ is recognized is by moving/twisting the wiimote around. With the WM+ connected, the racket in your player hands mimicks the movement of the wiimote/wm+.
In Tiger woods, with the WM+, you can see feedback when you are ready to swing (holding B), through the club head display and also in frisbee golf, where with teh WM+ you can twist and turn the frisbee and see feedback on the screen.
I don't know of a way to tell in VT09. As a matter of fact with the blue bar that tells you where the ball will be going when hit, I see no difference with or without the WM+ in this game.