I've got some other projects ahead of this one, so I can afford to wait a little while. I won't wait forever though.
It seems there are a lot of things in this hobby that you have to wait for at times. I always try and buy everything I need for a project well in advance (while working on other projects) so that I have it when I need it and don't have to wait.
These engines are not mass produced because there is not a huge demand for them like there is for other commodities. That is also part of the reason for the high price we pay for these engines. The cost of developement is only spread out over a few thousand pieces rather than spread out over 100,000's of pieces.

Anyway, let's get back to the subject.

I'd still like to hear from more people that have or have not had problems with a single bolt prop hub.
I'd also like to hear if you had a problem and found a fix for it.

Thanks, Jim