OK, I 've had some time to try the 5th Ave with the new rosewood bridge, and a jump from .011 to .012 strings.
Acoustically, it's a little louder, with more clarity, and a rounder more resonant tone. Plugged in, it's again, rounder, warmer.
There's no way I'd go back to the graph tech bridge.
Thanks again go out to Steve De Rosa and mrbeaumont
for their advice.