Hi
Adjusting the CG is not a problem as I have a big lump of lead in the nose to compensate for the twin servos in the tail plane. I am intending to try the plane as it is with the suggested fix for the tuned pipe and try extensive ground runs with it first. If I have confidence in it I will fly the plane but I dont want to fly aerobatics with half my brain thinking when is it going to quit on me also our flying field is very tight and I really dont want to risk what is a very expensive airframe on repeated dead stick landings. No matter how good your luck is one day it WILL run out.

Hence my back up plan of going with a YS if necessary.

Mike