Hello again
No, there are no spinner, only trackball...
Moving the trackball moves the paddle (actually the paddle follows mouse_x), if you hold the ball creation button, a cursor shows up, and the paddle stops, then you can aim the ball, with force of the ball being proportional to how far the mouse if from the paddle, and the angle being the same... After you release the button the ball shoots, the paddle resumes moving (following mouse_x), and the cursor disappears.
All that was actually coded today XD
Anyway, soon I will post some pics of the controller prototype.
EDIT:
I've put those in the blog: blog.agfgames.com