I've never thought about glass cloth. On the Laneir models I bought, the parts needed to be cut out. I was using strips of the scrap to span the joint.
As for wasting money on the Lanier models, I thought I was getting a deal ... at first. I got 2 .40 size stinger kits for $35 each. Of course, none of their kits come with any hardware, and the only plastic piece you don't have to glue together is the turtle deck. The Laser ARF seemed to follow suit. I think the ARF was $50, had no hardware, and still has to build the tail. It came "Already covered". I now know that this meant that the wing was sheeted with ABS, the fuse was plastic with plywood riveted to the inside. I pretty much got what I paid for, but knowing now what I do, I should have pooled my money and got another SSE.