Thanks to all that have replied so far. I just grabbed the spinner and wanted to see just how much wider I needed to make it. It appears that the spinner simply won't take that wide a prop. See picture.

In order for me to widen the spinner, I'd need to take out the guides that fit into the backplate. Presumably a bad idea.

So for now, I'd like to stay with the spinner concept - personal taste, I guess. So additional questions:

1) Do I purchse a larger diameter Spinner? I currently have a 2" Dubro ( http://www2.towerhobbies.com/cgi-bin...?&I=LXE128&P=7).

2) How big a spinner can I get for a OS .46 FX?

3) Is this something you "just know" with experience? What rules of thumb are there so I can avoid this in the future?

4) Isn't a True Turn (or equivalent) too heavy for a .46? (mentioned here: http://www2.towerhobbies.com/cgi-bin...?&I=LXFBJ5&P=7 ). What is the adapter kit needed for?

Sorry for the newb questions... I really thought I had a decent grasp of this hobby.

Thanks!

-MA