Would I be better off keeping my old 7ft one piece 1" slate bar table that had the return took out and drop pockets put in. Its not a valley or cougar all I know is that its old. I would like to try and get it to play like a diamond pro/am so of course I would like the pro cut pockets. I would think that I would have to have new cloth put on and the rails redone. I measured the pockets and they are 4 1/2 witch I think is standard. Hear are a few pictures I can take some more if needed.
2 balls will not fit in a 4 1/2" pocket like that. The balls are 2 1/4" each x 2=4 1/2"
This is a 4 3/8" pocket
One problem you will have is it already looks like your pocket shelfs are not very deep, when you tighten the pockets you lose more pocket shelf. That means that the ball will be sticking out pretty far when sitting on edge of slate just before it drops. The shallow pocket shelfs is one thing that makes Valleys plays easy. Diamonds have a deeper pocket shelf which makes them play tougher.