Looks like a good adaptation to the routine.
One thing though (I dont want to give unsolicited advice, but) am I right in thinking you do a 1 rep max as a 'warm up'... I dont think thats a good idea at all mate, just do a regular set at 50% of your working weight. Doing a 1 RM on cold muscles is, IMHO, asking for an injury.
If I have read it wrong then I apologise