I've never competed or even flown AMA profiles, but have always liked pattern ships. I've been on and off in the hobby for years, but I've noticed the big thing now is 30% extra looking things, hovering, and everything is four stroke. What happened to .60 2 stroke? OS doesn't seem to offer a pumped .60 anymore, and YS has dropped ALL 2 stroke airplane engines including the .45! I can't even find pattern stuff in Tower or on Ebay anymore, like it's just been erased. What gives?