I've been reading the posts about QHOR and QHOR modifications, but not flown by miself (I must study for an important examination ), to try to make an improved qhor based on the experince of other users and yes, longer fuse, better harriers and trolls, but worse blenders. It just depens on what you look for; mine is 37.4", others prefer between 33 and 36", but I'll probably cut 2 inches depending on how it flies.
So I'd buy another fuse. Mine is not squared for these reasons: too much weight, difficult to install servos and profile, and the structural force is lost when you do holes on it to put the equipment. It is a 20x24x20 mm (0.8x1x0.8") U channel, and I'll put my hands on the fire it doesn't bend (did some "manual" tests). I started making the .25 qhor and felt disappointed when I saw all the big engines and mods that were, so I built another one (after all, they're cheap....) for my .4 fx, built more less by the plans, with very slight tapper, 3.5" ailerons, longer fuse and horner tips on the stab. I also put some pvc tape on the leading edges, hope it does something noticeable to reduce drag. I think that's the reason that make qhors so much "brick like" when deadstick; too much drag, and inefficient wing design (in terms of soaring, longer and thinner is better).