Joebob,

I'm using a C.B. Associates plastic spinner with an APC 14x4W prop on my Saito 72. This spinner has a plastic cone with a metal backplate and has no lugs inside. It comes with an adapter nut that replaces your prop nut but you'll have to buy a metric adapter nut to fit the Saito. You'll need to use your Dremel tool on the spinner cone to fit it to the prop. I bought my spinner and nut at a local hobby shop.

The company is now known as CB Associates/Tatone, Inc and the spinners are sold by Tower Hobbies. Go to this URL http://towerhobbies.com/listings/cat-cat-q.html and find spinners on that page and click plastic spinners. If you click aluminum spinners you will find C.B. Associates and Dave Brown aluminum spinners.