Coke, Xjet - have you DONE the modification I'm suggesting to any props and run them?

I have done this a few times, when pressed by needs to use less-than-optimal propellers, and although there may be some stress/load redistribution in the hub, the ones I did sure didn't fail, either.

Not picking a fight, just trying to offer help to someone who was trying to prevent worse problems through hub compression while in use. (As a former ZDZ owner, I can tell you that that phenomenon DOES occur, and can be REALLY BAD when it happens in flight).

I'd be interested in some sort of a means to test the compression load distribution across the whole hub face before and after such a mod?

BTW - with softer hubs, torquing the screws to an appropriately "correct" value doesn't cut it....they will loosen nearly immediately when run, then they must be re-tightened, and that is where the circle starts.

Personally, the NX, Xoar, and PT Models hubs seem to be quite hard. The JXF that I have vary from prop to prop quite a bit.