Steve, have you read or heard about the "Fancherized twister"? dont get me wrong , the stock twister flyes well however there are some mods that make it much better. simply put what I did to mine, lenghten tail 2" (some say 3", cant remember today which I did
) incerase the span of the tail one inch on each end,(increase span total of 2 inchs), I did the built up tail surfaces with geo ribs sort of to lighten it. add half ribs between each normal rib in the wing, helps prevent the starved horse look on the covering. The onlly other thing would be to make sure the tail is LIGHT.I also added tip weight box, adjustable leadouts, and silly me, I added removable tailwheel with capacity to add tail weight,(that was a real joke, I have a half ounce of lead in the nose!) ah well live and learn
when I get home I can post a pict of my twister, it flew awsome, before and after all three, crashes, the fourth, well its still recovering from that one