I can personally vouch for the Sig Somethin' Extra! I've built 2 and absolutely loved both. Easy build, flies where you point it. I started with a Sig Kadet Sr., Somethin' Extra was my 2nd & 3rd planes. One suggestion...use very thin balsa and sheet the turtledeck. Much cleaner looking when finished and neither of my builds gave me a weight problem doing so. Running an OS 46 FX on both...flies like a dream.