I am finishing up a Mojo 40 and looking for the final details now (first build in over 12 years, feels GREAT to create again

). Power is a ST45 and I want to use an aluminum prop nut instead of a spinner. What brands and sizes are people using for these? I was looking at the Dubro 1-1/4" ones, they are fairly cheap and easily available. What other choices are out there?
Thanks,
Mark