I think we have all seen that 40 lbs is not the difference between competitive and non-competitive. In fact, I would never consider chucking the fire system over weight, and the cool suit (in my opinion) adds competitiveness by keeping you comfortable in the car.

In the past, with the cool suit, there were races where I was dying for the checkered to come out. That doesn't happen now. I'm generally as fresh getting out of the car as getting in.