prop change

[Joker2]

I used the boat last night took the boys fishing, before I went out I put a stainless steel fender washer on it. kept checking it throughout the evening to see if anything was loosening up. everything seemed fine. I spoke to a few mechanics around here, nobody seems to use the exchangeable hub system, they all say I should not have to be jury rigging it, the kit should have everything I need. It is not the case I guess. Thanks for yor input.