Diamond tables are quite different from Brunswick Gold Crowns. For one, they use Artemis K55 profile rail rubber, not K66 as do GC's. The profile is the angle in degrees the rubber is slanted... for a crude graphic, this might be a 66 degree profile, with ball nearby: >0 and here is a 55 degree profile: )0 crude, yes.
The point being, IMO, Diamond tables bank way shorter than do GC's, and many of my shots in addition to coming up short started backing away from the pocket noticeably. I believe more of the collision-induced english on the object balls, especially reverse or hold-up types, transfers on Diamonds than GC's, due to the rail profile, possibly also being a softer rubber... the balls sink in deeper and/or more surface area of the ball/rail is grabbed, so more ball spin gets converted to angle out of the rail. That's my theory and I am sticking to it.
Practically speaking most banks needed to be overcut and whacked to take out the spin factors. 3-rail banks came up 1 to 1.5 diamonds short... bouncy rubber again shortening them up. Diamonds play good, but there are some definite adjustments needed if your experience is primarily GC's.