If her vagina was a M 24 bolt she would <| sep |> Guy you ' ll get laid onceGirl you ' ll get pounded a lot <| sep |> Someone please enlighten me . I ' ve built about 20 cars in my lifetime , 12 with some form of 4130 roll bar , cage , or full frame . Never once did I preheat or post heat treat a frame or cage . I ' ve never had one develop cracks , and have had multiple 25 . x NHRAIHRA certified . I understand the concept behind it , especially with thicker multipass welds , but for single pass . 125 or thinner materials . why ? <| sep |> Yep . I gave them $ 5 just for the hell of it . <| sep |> Yes those are controls . But the tested value should be unknown before choosing what to test . And none of the others were ' bad ', haha . Stats is weird and can easily be misleading .