Hey yall I am about to purchase a racing seat but first I have a question. there is a version of the seat that fits up to a 38" waist then a version the fits up to a 42" waist. I have a 37" waist and I'm not sure which one I should get. I feel like the 38" might be a little too snug but the 42" will be too loose. I'v never had racing seats so I really have no idea if I'm correct or not. The seats are the Corbau FX series (fx1 pro is smaller, fx1 is 38", then fx1 wide if 42"). Anyone have any experience with these seats and how they fit?