My guess would be to massively increase work load and calories and see what happens. Maybe do 3 sets of front squats after 5 sets of squats or something along those lines. Increase by 750-1000 cals per day and see what happens.
Another problem is what people believe over training is. So many people believe that you will get full blow "cancer of the AIDs" (thanks Chaos and Pain you sure phrase things right) if you train just a little too much. It has become something so feared that people think they can't train more than 4 days a week. Normally a mild case of overtraining can be fixed with 2-3 days off...
Experimentation is the word of the day here, and you're going to be like a mad scientist, tinkering with your diet until you've turned yourself into a massive, world-destroying robot bent on nothing short of the subjugation and destruction of the entire human race.
-Jamie Lewis (Chaos&Pain)
Nothing exceeds like excess.
HT: 5'10" WT: 220
Deadlift 455 Squat 405
Bench 355 Push-press 275