With 7 diamonds offset, the cue ball is going to dive further forward, and hit the short rail closer to the center diamond. So you need 1 "point" of left english (like 1:00 o'clock) to get the cue ball back to the corner.
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Added to Simple short cushion system9 hours ago

With 7 diamonds offset, the cue ball is going to dive further forward, and hit the short rail closer to the center diamond. So you need 1 "point" of left english (like 1:00 o'clock) to get the cue ball back to the corner.