I've gone for shorter skids than anticipated, and in fact they're off a previous build and cut in half. It is therefore going to be something of an Apache Short-bow, and note that the horns of the skids are cut-offs that I've used repeatedly. They are secured here by a 20mm by 20mm timber insert to which they are glued, with a pop-rivet or two to secure.
The trailing ends have domed inserts, which for square as against circular sections are generally rounded ends rather than domes, and therefore the rounded edges should be set top and bottom of the skid (instead of either side), as this provides curvature at the rear end beside the front. Think reversible snowboards.