I can't say how many, but am willing to pass on any information at my disposal if asked. I have found a lot of "fair" players are hard headed, or maybe just egotistical, and don't like any "help" so I don't say anything unless asked. They always have good "reasons" why they shot the wrong ball or pattern and end up screwing themselves in the end. I found it better just to keep quiet as I don't care to listen to a ton of excuses on how the table rolled off or how the cueball skidded.......you get the picture.
One guy in particular I have passed on a lot over the last 3 years, and he has improved a lot, but I see him getting back to some old really bad, bad habbits....twisting his cue, elbow flying out to the right, hitting shots really hard when he just need to put a solid stroke on it........ really bad stuff.
Face it, if you want to really improve, you have to put in the practice (not just banging balls around on the table) and table time. He no longer seems to be willing to do this, so I just keep my mouth shut and beat up on him.:frown: I wish he would put in the time, but that's not my deal. I can only control what I do.
With this said, I am probably what you would consider a solid B+ player in one hole (that's all I play besides 8 ball league). Not great, but for sure better than average.