Thanks Dana. I should have mentioned why I asked the question. It was not to start a flame war.
As it seems the control responsiveness of an RV-6A is closer to a KR than a Cessna 172 then time spend getting used to the RV should contribute to a person flying the KR more safely. For a person who has never flown a KR and is about to is it common for anyone to get that newbie proficient in KR flight to include take-offs and landings? Ron Lee

