Jon, I have built most of the SIG kits and not all of them are good starter kits for first time builders, your about to learn that. I wanted to bring up the SIG Mid Star 40 but the two planes mentioned are more advanced planes/kits so I avoided it. One of my flight students built the MS 40 and it's an easy build and an outstanding plane too. My problem with it is it's about like flying the 4* series of planes. Most the time when I have taught building it was with the Super Sportster but I have started using the 4*60 now days. Maybe take A look at the Goldberg Tigers, both the 40 and 60 size. The Super Sportster 60 is still A good choice. With the Ultra you can get A bunch of help building it, I think Mike or Ken have A build thread on it that will about walk you through the build. What one do you like?? It's your time and money.