JXMIKE said:getting longer rails are better than shimming pockets, ive played on tables that were shimmed weird and at certain angles rejected balls every time even hitting dead center with pocket speed.
find a good mechanic to get longer rails for you.
I hate having things like that happen, it's like you are playing 2 opponents. The guy starring at you with the cue, and the table. Where I play I have had many many nice runs foiled by a "thunk" off the inside pocket cushion. Some sides of the tables you have to plan out how the pockets play to avoid having a shot rattle. I'd go with longer rails.