Hi Dwayne1979,
I just launched 42 at one of my clubs yesterday morning.
Now today, my Lats are 'caning' me, my shoulders feel like they're about to fall off, and I'm having difficulty with deep breathing because the muscles surrounding my ribcage including my Obliques are very, very unhappy.
I'm the instructor, so can only imagine what my poor participants feel like. Although I am in unbelievable muscle pain, it strangely feels good.