Optimal Time to Start Pre-Contest Diet

OK, so my first contest is in March and I want to do things the right way. I know the sacrifice that is involved with the dieting at the very end, days before the contest, but I need the help from a PRO here to give me advice as to when I should start my pre-diet and my diet for my contest.
Thanks guys…

lean_freak

Your last picture is from 2006…

Any chance of an updated one or any updated stats ???

How can we advise you when we have ZERO details.

I will try to post some new pictures, I hadnt been on here in a while…hence the pictures from long ago. LONG.