Definitely 10 points for the 4*. My first kit build was a 4*40. It was a dream to build. Unfortunatly pilot error id it in way before it's time !! I now have a 4* 60 & it's the best plane I have ever flown . You can go fast or almost float it in on landing. Something that's a lot of fun is to get some altitude, head into the wind & see how low you can drop the thottle & still keep your altitude. It's almost like a sailplane. Is mine different or does all 4*s have that really cool high speed whistle?