I wasn't meaning to run two prop nuts- (although you gotta have nuts to fly, right?)- I was wondering about the washer- I did notice that the Dubro has a pretty good surface area that contacts the prop. The washer that I have has about a 1/16 taper, and it didn't seem quite right to butt that nut against the smaller part of the washer- I guess I'll leave at least one nut at home...
Thanks much and cheers-
Brett