The first major project for the olds is going to be 4 corner air bags. I have decided on the bcfab level 4 kit. When I talked with them they mentioned that you have to trim the A-arm pockets on the front suspension to keep the air bags from rubbing. Does anyone know how much has to be trimmed? I thought I saw someone on here say that it looked like too much had to be trimmed and that it was significant, possibly compromising the structural integrity, and he didn't go that route. If I were to upgrade to tubular A-arms, would that keep me from having to trim anything?