Use velcro in the areas where the headliner sags from the body. I have Ttops and have recently replaced the headliner with BLack Suede. Its beautiful but the junk yard headliner sags after the dome light and before the front clips.. Only feasible solution to me was Velcro after seeing it in a 4thgen fbody (1 inch squares) I have not tried it yet but am 100 percent positive it will work. The headliner is light even with fg resin reinforcement... I plan on using velcro in the back also where there is no support. I will post again with the results and maybe a couple pics to show off the 95 firebird seats and 94 camaro seatbelts.