I have builtseveral of the Lanier kits mentioned and agree some improvements could be made especiallt to the Stinger line of kits but what do you expect for the price. I have built their Extra 300S aside from the plastic parts it was great flew rock solid. I have built two of the Giles 202's and they were vastly improved over the Extra the only plastic was the cowl which I replaced. Both were powered by Sachs 5.8's and are just like a .40 size hot rod geat fun.