installing carpet in a race car

Here's what Kitty said. So you better listen. LMAO. She says......say the center of the bar where it meets the floor is 4" from the carpet edge. She says measure 4" in even with the bar front to back on the carpet. Then cut a slit going in from the edge all the way to where the inside of the bar would be. Then, back up half the diameter of the bar and cut a perpendicular slit making an X. Just a suggestion. I would use the absolute sharpest "thing" I could find if you go that route to keep frayed edges to a minimum.