people will bicer back and forth about which to buy because they bought it. I've built the goldberg, sig and GP cubs and the GP cub was the easiest and best designed cub, sig is the most scale and the most work. The GP 40 cub was my fist kit and I came out just fine, I was 14 at the time. wow time flys

I still say Build the GP Cub 40 or 60, I recommend the 60, though the 90 inch wing is kinda cumbersom. Then build an untra sport 60 weather ya like the kit or not you'll get allot of good experience then build a warbird.