Leedog,
I just got this bike as a replacement for a 800cc Suzukii Volusia. I know the vibration that you're mentioning. I've only had the bike for a few days and out for 150 miles. I asked a sportbike friend about it and he rode the bike around the block. He said is was smooth as silk to him, but he didn't want to push it. I told him to take it further and let me know. When he came back, he called it a "frequency vibration" not an engine vibration. I guess since I've been used to cruiser twins and 2 stroke singles, I didn't realize that fours produce a certain vibration naturally as a nature of the engine. Sort of like the buzzy sounds you hear from 4 cyl import cars. I'm a muscle car guy too. I've got an '01 Z 28 and the vibe is definately different!
After riding a cruiser the past few years I went into this thinking that the rpm's were high at 80mph, but really that is less than half of redline. The engine doesn't even break a sweat at 90 mph. As configured, the engine's piston speed works out to about 3980 feet per minute, so that is well below the industry limit of 4500 fpm for street engines (racing engines typically hover around 6000 fpm, but need to be rebuilt after a race or two).
This engine should be able to last forever with relatively little piston wear or valve float, even if you ride it at 9500 rpm all day long!