Ice_man the spacewalker II is a great second plane and cheap too! I built one a while back and flew it for a second plane and it flies like a charm. It inverts great and is really stable landing. The only problem I had was assembly and that was because the manual was very, very bad. I just used common sense and assembled it the way I thought would be best and all came out great. I did have it underpowered with a magnum 40 and decided to put a Saito 72 in it. That didnt work out the greatest so I put the 40 back in and have been flying it since with no problems except for the low power. At $115 its a bargain and looks great too. I chose it for the cheap aspect since I had never flown a low wing taildrager and it proved to be just what I needed for learning on. Plus after you get use to it you can set the throws to high and really do some great flying. I have never flown the super sportster or the 4 star but the 110" rascal and the 75" rascal are great planes from sig and I wouldnt be worried about any of their products.