Piper Chuck.... When did the "more than two options on the throttle stick" come out?????? I'd like to let some of my fellow fliers know about that......... re: the options, just about any .40 size plane can handle a .50 engine, if there is room for it.... I have a .60 in my Goldberg .40 size Cub and never fly above 1/2 throttle except in emergencies.... ( what? you've never had one?) Cliff