You may want to try that .61 that downtrodden is talkin about cause sounds like he knows what he is talkin about. I have the Saito .82 Golden Knight and love it. Wicked endless vert. These guys liked it to :

http://www.rcuniverse.com/magazine/a...article_id=408

As a matter of fact they loved it and it kinda takes the guess work out of what prop to try and such .....it is all listed there for ya to try.

As long as you get a half decent eng you will have fun with the twist. I have only flown mine for 10 mins at the end of last fall and I can't wait for spring. If you do get the Saito .82 may I suggest you throw the glow plug in the garbage and put in a os plug- it will save you a lot of heart aches.