Prop Recommendation

Hey Guys,

What are you using to hover a Saito .72 (15% nitro) on your T-T? I've been running an APC 13X6 but that's fast and sport plane. Seems like ground clearance prevents me going longer that 13". But also, the prices go up a lot at 14". So, I was thinking about 13X4 and perhaps I may need to EPA down the throttle. I'm guessing that the RPM's will be real high. Any thoughts?

Thanks!

P.S. I tried 20% nitro (Powermaster) but the cost/benefit wasn't good.