RE: propeller choice
So much pitch?
the 12 pitch is not a bunch....We are not doing flippity floppity stuff. The prop selection has to do with the acceleration and deceleration of the model. When you fly the really flat pitched props like on the fun fly models the planes don't respond to throttle....The whole purpose behind the flat pitch props is to decrease the sensitivity of the throttle so that you can make bigger stick changes without the model responding instantly. With a pattern model you want instant response....
Take a horizontal snap roll followed by a rolling component say 1.5positive snap-4/8pt opposite direction....The model needs to be stalled in the snap...Then you want it to recover and instantly be tracking to perform a point roll. If you use the big flat pitched props the model will die in the snap and it takes too long for the model to recover.
Also the higher pitched props will tend to be more constant speed. The difference between upline and downline speed closes...and the throttle becomes easier to manage. Sometimes a higher pitch prop will be a slower downline than a flat pitched prop...Example the in some cases the 16-13 has better brakes on the down line that the 16-12 or 16-11. Usually Diameter helps more with the brakes than the pitch does.
On your model the 13-10 may work out well for you....but I would venture to say the 12-12 or 12-11 might even be better at controlling the speed of the model.
Good Luck with it
Troy