Hi 13yroldpilot.
I built the Somethin' Extra as my second plane and the Super Sportster as my third. If you want a plane that will do some fun 3D stuff, you might want to go with the Somethin' Extra.(but start out with low rates) If you want a plane for more "pattern type" flying, the Sportster will work great. I like them both for these two reasons. I think the Sportster is a nicer looking plane, but the SE is more fun to "fling around". As kits, I found the SE a little easier to build than the Sportster, mainly due to the need to shape the nose for the Sportster. (not a big deal tho) For power, I installed OS 46FX's in each plane, but this year I've installed Webra 50s to give them a little more "oomph"...

I think either of these would make nice second planes...Len