Would it be a catastrophe if the 8-ball and rotation games rule-makers just eliminated the double-hit on the cue ball rule? I say - "Let 'em play on" if it is a single stroke (not a push), and the cue tip doesn't hit the object ball. Slow-motion camera shows many double-hits for previously presumed legal hits. BCA regional referees have made a travesty of the official double-hit rule, by allowing unwritten 'rules of thumb' that also filter down to the local BCA leagues and training for new players. If BCA leagues can't effectively enforce their written rule, then remove it.
Allowing the so-called double-hit on the cue ball would allow another 'skill' to be added to a players arsenal.