You can't go wrong with the Saito's. I would opt for the smaller one, the 91, as you just don't need the 100 on that size plane. I can hang my Venture 60 on the prop with the 91, it has that much power with a 14x6 MAS. The 100 you would never get over 3/4 throttle, unless you were testing the glue joints. Have fun with that, you should love it.