First of all, I would recommend an APC 15x6 prop. I have found it to be the best prop for my Saito 100. Secondly, I would advise you to be easy on the rudder when you are taking off or landing. The rudder is VERY sensitive, which surprised me since it isn't even counterbalanced. Other than that you should not have any problem with the plane. It is very well-behaved and is a joy to fly. I am building one with a 89" wing and I hope it flies as well.
Good luck!