I'm already done setting this one up, just covering it right now, if I did the alerion mods and the tail widening mod I'd have to redo those sections, not really bothered by the stock setup, this is my second extra 40, first one died from old age and oil soaking over the years. Plus,, I've got some bigger fish to fry after this is done and in the air, about 12-14 kits from newer to vintage waiting to be built, plus a few scratch built plans laying around, my enemy is time, but I still build even though I don't have much time available.