The aft two inches of the CG range for KR2 or KR2S is a danger zone. Early fliers realized this and sent out the warning via the Newsletter, but Richard Mole, English Aeronautical Engineer, studied it in detail and I believe his comment was something like "I hope nobody's tried to fly it like that". There have been several folks who didn't live to spread the word. I accidently flew with an aft CG, and detailed the experience at http://www.n56ml.com/wb/index.html . It's not something you want to repeat! Err on the side of a more forward CG, especially during initial flights. The speed difference is not noticeable.
Mark Langford ML at N56ML.com website at http://www.N56ML.com --------------------------------------------------------