mods. REV limiter is set to 7600. I see your point on the relative loading. Static comp is not as critical a variable as RPM and torque.
Version 2.0 (manis, TPs, gt28rs, Selin, plus other goodies) is much higher based on the dyno butt. Still working on the tune so no real dyno yet but it runs and pulls hard. Not enough miles to put any significance on the data yet though.