Hi Dan,
Let's see, this may be a duplicate post as I am sure I hit submit, but it never showed....so.
I just completed a trip to RBG. Averaged about 8.75 running 21/2350 at 7500-8500' (with occassional excursions to 9500..quite an updraft). I flight plan for 10, but typically see better than that by running around 65-70% power at cruise levels. I too see little speed difference when putting the whip to it, and it runs smooth in this range.
Speed...TAS/Corrected was something like 138-142 going and returning...ground speed however was a different matter with strong winds. I had about 128-130 MPH going, and 155-160 returning. Bonanza...I don't need no schtinking Bonanza. Well almost anyway. I think I found a sweet spot at 9500 on the east bound trip that really was nice. Help it until 25 miles out, then tipped her over and throttled back a touch maintaining top of the green all the way down.
