RE: Sig four star 60 or 40
They both fly the same, the -60 will do better in wind (heavier) and will crash harder, all other things being equal. If you feel comfortable with your flying abilities, and have someone at your field to back you up a few times until you get used to it, and the extra price to get it up and flying is no object, go with the -60. If you've got the $$$, go with a 4-stroke-- a Saito .82 would be awesome. The only other thing to consider is transporting it --it's pretty big. There's a bunch of -40's and -60's at our field, everybody likes theirs and you can do a ton with them. One guy clipped his wings, eliminated 2 rib bays on each side and took out a little of the dihedral (not a lot to begin with), goes like hell with a 1.00 Saito.