I would appreciate any comments from pilots who have flown both versions of the hinged ailerons and flex hinged ailerons.

I have flown the flex hinge version and noted that it took real effort to turn (real stiff) compared to my Cherokee 140 which could be turned with essentially finger tip pressure.

One pilot stated the hinged ailerons worked well on the ground but were just as stiff as his prior installed flex hinge in the…

Been informed that Clark's Corvair new cylinder, upper to cylinder head studs, expand about 30-40 thousanths more than the original GM studs.

Clark's Corvair has informed me that it will not affect the engine.

Does anyone have actual experience with these new studs compared to GM's originals which are no longer available as "new original stock?

Any adverse problems?