That is a lot of slack. I had nothing like that. Mine was so minimal that i may not have even taken a 1/2 of material out. It looks like to me that it had not been positioned properly to begin with. You might have to buy another one and start over. Try positioning it more forward until it looks tight around the rear window. You might think about where you got it also. There is definenlty differences in products. I know, because i had to buy a second one from Year One. As far as the vinyl repair kit, you can get those from upholstery shops or fabric stores.
