I've been doing the 5X5 since Nov. with excellent results too. I think you should keep doing it as well but tweak your diet a little. I'm starting to cut up right now doing this program and I'm still eating the same amount of calories. Post a sample of your meals.

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ASG squat max: 435lbs
Bench: 300lbs
Current Weight: 193lbs
BF% 9.5
Age: 25
Height: 5'9