Posted for Ken Welter <rotary.coot@verizon.net>:

  Well Dan I will help you with a couple of them.
  As for RPM I have put 1000 hrs on my coot cruising at 6000 to 6500 RPM and have had on problems do to RPM but I did have three engine failures in the first 400 HRS do to the Ross redrive but once I got rid of it I have had no problems.
  As for oil in the gas I have taken off zero ground temp and run at 30 below at
ALT and have had no problems but I am considering that adaptor block so that I can run two stroke oil and not have to pre mix but I also would like more info on it from someone that has run it.

  Ken Welter
  http://homepage.mac.com/rotarycoot/