You're nearly alone. From your post it sounds like you were looking for a gambling advantage over weaker/clueless players. I think you mostly still have that as few players do the internet or books or magazines. I suspect that most of the "secrets" you were sold have been public info for a long time. After all, the secret of pivoting has been in print for over 170 years -- if only you knew where to look.
Hi Bob,
I respect all you articles and knowledge of pool and dedication to the game. Truthfully the knowledge is out there, but bringing all the knowledge together and applying it to every possible shot on table is not there and not easily done. I read and watched all articles, and DVDs that are readily available for free thanks to Dr. Dave, Mike, you, Grady and many others, and true it benefited me with some shots, and i am a Mech engineer with PE, and almost about to get my second PE in electrical, but truthfully did not give me the missing link that i discovered by accident and put a huge smile on my face.