Following Monte's example of giving credit where it's due:
Just got the silver Bonnie back from its first service. Took it to North River Cycles in Salem, MA, where I purchased it. It's a small, one-man, Triumph-only shop. Dennis changed the oil to M1 synthetic and 'fiddled' with the carbs somewhat.
It's soooooo much smoother now, and has a definite improvement in power delivery! Jumped on the highway for the first time with it and went right for the TON...
Thanks, Dennis!