I have a small outside air leak I want to fix at the base of one of my sliding glass doors. The door slides (closes) into the weatherstripping of the frame properly at the top and middle, but I can see a sliver of light and feel the air coming in at the bottom. Maybe 4 inches. Do sliding glass doors have any kind of adjustment so I can get a more uniform fit with the frame where it seals? I'm thinking not but thought I'd ask. Is there anything else to try? I don't think I can fit any different weatherstripping into the door. The weatherstripping is OK, the door just doesn't slide into it all the way to seal out the air leak.