RE: Goldberg Extra 300
Big Al, my wish is you get all the joy and satisfaction out of that model airplane that everyone I've ever talked to with one has had. I checked your profile, you may find it easier overall to fly than your 4 star. I've heard the 4 star is similar to my 2nd favorite model, the Thunderbug, and if this is true you'll find the Extra is more stable, obviously easier to see, and a little more forgiving to land.
This kit might still be in production today if it weren't for the nosing over on grass taxi issue. You've read the thread and you know how to solve that.
Have fun with your build!