Dave I know of 4 seperate cases this last season of motor ejections with both outrunners and inrunners. Dave Snow twice ejected and his last one was his brand new Neu inrunner. Chris Moon ejected a Pletty firewall mounted and we had another firewall mounted ejection from an AXI F3A at my field this year with Gary Stephens. All using an APC E.
My opinion is there is a correlation. Anyone is free to argue it but it's still my opinion that the E. props are too thin and too large for the stress and I'd advise using a CF prop or the APC's with the CF reinforcement. Who knows what side forces and turbulance situations happen in the air. I saw a video on violent worrble and its unbelievable what happens once it gets started. No mount or fuse could hold up to the stress.
Does anyone know the link to that video? Thanks, Mike