Suggestion 1 - 

Cueing

Lets face it, people can get almost any shot no matter how far away it is. This is not realistic. I think that flyordie should make cueing. What i mean is when taking your shot, you have to move the mouse forward perfectly straight. If not then the shot should be a little off.
This makes shooting much harder and so stops people from getting shots from anywhere. 

Suggestion 2 - 

Rail Shots

When the cueball is near the cushion, in real pool/snooker it is hard to get backspin and sometimes impossible. Yet in this game it makes no difference to the amount of spin where the ball is. If flyordie done this then the game would be much more realitic. There would also be a greater purpose for doing safety shots in snooker.

I am fully aware that the first suggestion is very hard to do but i am surpirsed that when snooker PRO was released they didn't think of adding suggestion 2.