What I'm noticing with my CS IO-320 6A is that it seems to pause or hesitate at that point of transition from runway to flight more than most A/C I've flown. I'm only showing 2600 RPM max and think maybe I need to turn up the governer. The field is 4650 ft and flaps half way position, full fuel and no passenger. Any suggestions?
First off, I have never flown a 6a---so this is strictly based on opinion, and not empirical data.
You do not mention anything about holding the nose wheel off-----and that is something that should probably be dealt with.
I took 8 hours transition training with Mike Seager, and the very first thing he did was hand me a sheet of paper describing how to take off, and land a nose wheel equipped RV. This was written by Van himself. It tells how to keep the nose up on takeoff, and landing, and why this must be done.
As Mike and I started actually flying the 10, nose wheel ground contact was a major part of the work. I was taught to hold back stick from the start of the roll, and get the nose up just a bit as soon as the elevator had the authority to do so. Then hold that attitude and let the plane fly itself off.
Works just fine for me, in a 10. As far as I know this is how any "A" model should be flown.
Now, as to half flaps on take off------Mike and I did not discuss such things, the 10 uses zero flaps for takeoff.
But-----on landing, I notice the force needed to KEEP the nose wheel off during rollout is greatly reduced if I raise the flaps soon as I can after touching down. Thus, I expect that using half flaps on takeoff is causing you to have a bit of nose down force you really dont want or need, and that may be causing the sensation you are experiencing.
Hope this helps, good luck.