There's now formuls out there to calcualte how much you should take...if you're experienced you should know what you can handle and what you can't. if it were my animal, I might feed him 600mg the first day this first cycle...if that goes alright, i'd feed him 800mg for the first day of the second cycle...and so on until the right dose is found....i wouldn't feel right giving out exact numbers to you (or anyone) though.
and also, i would heed radical ice's comments.