BUILDING YOUR KR!
After seeing what a number of builders are thinking/planning about reworking different parts of the KR to change flying characteristics, I have the following comments. For us non-engineer types who don't want to spend all our lives building and want to get in the air with our choice of KR (for whatever reason we chose it) -
1. Build it to plans (there's plenty of room for cosmetic personalizing)
2. Build it LIGHT
3. Get some expert help putting the engine together
4. Ensure adequate fuel flow
5. Be meticulous with weight and balance (operate near the forward part of the envelope)
6. Get some dual (to ensure that you survive the first few seconds of flight)
7. Don't fly at night (forget lights except for strobe if you feel it will help to be seen)
8. Don't fly IFR
9. Talk to the high time KR pilots about "sensitivity".
Many will choose the word "responsive" instead. You do have to fly the airplane - it's NOT difficult - just not a hands off airplane. Because of this characteristic, it really is fun to fly a KR. Most KR drivers become especially comfortable flying them after about 100 hours or so but it is certainly NOT uncontrollable up to that point. Many KR pilots, including Rand were low time pilots (couple hundred hours) before they flew one for the first time.
The only initial problem I had was trying to land too fast, which caused me to start "reaching" for the runway before it was ready to quit flying. I now keep power on at 1200-1500 rpm until in the flare, then gradually reduce power and let it float to touchdown (I have standard retract). The fat little wing gives you good lift and I found the ailerons give good control to touchdown.
I do, however, enjoy reading the ideas for altering the basic airframe - after all, much of that is what this KR discussion group is all about. It's very interesting but I personally just choose to dismiss many of the ideas in favor of sticking with the proven plans, given my limited knowledge and experience. I think there may be others out there in the same "boat".