Thanks for the input Dick. I rechecked the play when warm (still un-calibrated eyeball but paid closer attention) and it is actually more like 1/32 of an inch movement. At this point I will just watch it for any change and continue flying and breaking it in. The steel header and aluminum pipe get upgraded to CF pipe and aluminum exhaust header on Thursday if Big Brown is delivering as scheduled That should drop almost a half pound! I hope to see it in the flight characteristics for slow speed flight. It is great as it is but a slower stall speed would be great for playing down low.