citson ... They do NOT have the same body contour bevel OR body thickness. The Singlecut is thicker (think SE 245 thick) and looking at both side by side, they have a slightly different top bevel contour.
As for weight, hard to gauge. Sweetwater's instock list of S2 Starla's, and they go from 7lbs 6oz to 8lbs 6oz, and the lone S2 Singlecut they have is 7lbs 11oz. There's also real nice S2 Singlecut on eBay with McCarty Tobacco Sunburst finish, and its 7lbs 9oz. So they weigh about the same.