Just got back from my third contest with this plane, went well and got my final promotion point so up to Advanced at the next one! seems to be struggling a little for power at the top of the big loops so not sure if we are running a bit lean but changed out the dle spark plug for an ngk and it didnt look too lean. Am planning to richen it up a touch and do some more testing along with trying out a longer pipe length. Other area for experimenting is a few of the more experienced guys suggested the wooden prop sounded a bit noisy and inefficient so might be looking to change but not sure what to so any suggestions appreciated.

Update on the soft mount and exhaust joiner as well is that we are about 35 flights in and no signs yet of any damage or wear so we are happy with that.