After reading, and also hearing about the kr2 and all if it's problems..from engine..to landing gear ...fuel system..etc I am surprised that after all of the years that have past, the kr2 still hasn't yet been refined , as to have one being built with all of it's problems being resolved, from past builders and also flyers as well. It seems to me that something is always going wrong when changes are made.
New builders should take the time to actualy read the plus side and the negative side of the kr2 before building one. 90 % of builders have not built one according to plans, without making some sort of modification to the kr2, maybe thats why they are having so much trouble later in the final phases when it comes to flying. ( want speed ? keep it simple and light ) Maybe you should stick with the original design that has been proven for many years