Hi David...
I've never seen the RPM exceed 2650 static
Sitting on the runway, pointing into wind, brakes off, smartly select full power and watch for absolute Max RPM before, say, 20K... is that your judge of Max RPM? If so, then it seems right. However, since it is relatively quick/easy, I'd back that off to nearer 2600RPM and see if it helps.
We got our Governor in ~2007, as a B. As per advice here we sent it back, and it came back as an -E, and it did surge a bit on touch and go's, overshoots etc. Reducing the Static RPM cured it. The advice in 2007 was that the -B were the problem, and that a -C or -D would solve it. That advice now seems to be you need a -F ! (Our -E is fine).
Overall - have a play with Static RPM, unless you operate out of a 300' strip, setting it a bit too low won't be a safety issue. If it solves it great, if not, maybe look at modifying/changing the governor, but that will take sometime...
I've test flown a few C/S RVs, and the RPM governing is often a bit suspect, but lowering the static RPM seems to help, even when logic says it should not
What engine have you got? And have you ever setup the static RPM? I find invariably they are supplied too fine for 180HP...
HTH?
Andy