There have been several posts lately on KR's and large pilots / passangers.
For those of you that have outgrown the KR design or were born too big to start with, you might check out the following web page. I've never seen a Vision aircraft but the building process looks simple enough and I suspect the cost would be reasonable compared to a KR modified for larger builders / passengers. http://visionaircraft.com/ Larry Flesner
