Maybe you should take a look at Dave Tate's and Jim Wendler's advice concerning the use of GM's as a max-effort lift on the EliteFTS.com web site (Q&A's and articles). They've addressed it numerous times and in several articles about how it's rarely used or recommended anymore.
Don't try to use my 10+ years of lifting experience or the fact that I weigh 150lbs as a reason not to listen to what I said/advise. Nice try though!
By the way, what's the point of commenting on my stats if you have nothing to show for yourself? I have no problem with my stats. Nor should anyone else.