What size props do you guys use for the Saito 56?

Up here Keith is using a Rev-Up 12-5 at about 10400 RPMs and I use a Zinger 12-5 at about 9700 RPMs.

Doug,
Was that a flat back prop?

Thanks Doug.  Not sure what you mean by "1/2 UC"?  UC =undercambered but the 1/2 stumps me.

What size plane is this Saito 56 /14"prop flying?

I sure tried a lot of different props on a Saito 56. The only rule I discoved is that it's entirely dependent on the plane/engine combination. I built a plane and went through probably 30 props before I tried this 12x4 eather 3 blade UC prop. This particular one really made the plane come alive with the Saito 56. I transferred the entire setup; engine, prop and tank to the next version of the same design. Only a very few changes in the the airframe and of comparable weights. It flew OK with that prop, but nothing to write home about. Went through another 30 2 and 3 blade props from 11" to 13.5 inches. and finally settled on an 11.5 x 4.25 three blade Eather. It was cut down from a 14x4 so had really wide blades. Worked very well.