Let me ask you this:
If a golfer has some wrist cock release, and slightly less wrist roll release, are they still sequenced by Homer's definition?
My guess/answer would be sequenced, but with overlap, assuming they occurred in that order.
Is 100% sequenced (with no overlap) possible? I DON'T think so, but I have to think some players are closer to it than others.
Is 100% overlap possible? I DO think so, at least in theory.
Here's a related question: With a Haney-type downswing, if the left forearm needs to roll early in the downswing to get back on the "real" plane (and, according to Homer, #3 accumulator should not be released before any of the other accumulators), does that imply a simultaneous release of all accumulators should be starting as soon as the left forearm starts to roll?