I have a couple questions. Is your rear bow set corectly? It's hard to tell by pics but looks to me like it should be leaned ahead an inch or so. Are you sure the pads are in correct place? That one pics shows pad clear to bottom of rear bow. The bottom of pads are usually up 5 or 6 inches up from the end of rear bow. That gap is probably because the clamps are holding the top up a bit and not letting window pull tight. Put a few staples under where you have the clamps. Latch top down and see if window pulls tight if not tighten up pads. With a glass window the pads have to be very tight because they are heavy.