With some of the recent discussion on flight characteristics, some builders might get the idea that the KR is hard to fly. NOT TRUE. In most of the flight envelope the KR handles much like any other airplane you've flown, very conventional. It is in the very edges of the envelope, slow and fast, that you may expect different handling depending on any changes you may have made to the original plans. That is the area the "test period" is designed for and the time in which you will determine what is normal and "safe" for your particular KR. An entry and your signature in the aircraft log at the end of the test phase will have you attesting to the fact that you performed the test and authorize or restrict certain maneuvers.
I think that most pilots that fly KR's would agree that the KR is as much or more fun to fly than any other type of aircraft they have flown. Larry Flesner