After replacing my mouse I no longer have problems with the meter auto releasing/hitting.
It is quite unfortunate that a intermittent mechanical malfunction would coincide with a recent WGT update causing me to mistakenly believe this error was the exclusive fault of WGT.
In conclusion, my opinion that WGT=SCAM in a previous forum post was hasty and incorrect on this issue.
My apologies to WGT... and also to all my playing partners of the last week in regard to this perceived meter issue.
My bad.