I will stick with the 91 size .  Why ?               1. First Low Wing   (I will not know the difference in vertical speed If I never had it to begin with.)

                                                                            2. I want to teach some kids about tork   (65  2 str. / 91 4 str. same horsepower ETC )

                                                                           3. If I go to a war bird its going to be BIG ( not a 100 size)

                                                                          4. I decided to buy a new 7 Ch. Futaba radio with extra rx for $10.00 . thus I can not afford a 120 pump.

 

However I still like the idea of a OS 1.20