beats me.  We're still in business.  Doing more sport stunt stuff than combat lately though.  The Eastern Europe ARF's have killed off a lot of foam wing building.  Though I did just get a call from a guy who built the SX 460 and loved it.  460 squares, plug in foam wing.  Extremely easy to build, only about 10 parts.  Got me to thinking I should redo the Gotcha Streak with a plug in wing.  Makes for an easier build.