Spyke you got it.
You would just increment the usual until you hit some failure point with your negs and then repeat. I like to increase the frequency a whole bunch towards the beginning of a cut cycle while eating a maintenance level. then as the weeks go by and the weights get higher, i lower frequency of heavy training 3xweek + 3x week 30 min mod cardio. I continue with that for a while.
I got some advice from Dkm and he said just keep tapering off the calories as you extend your cut cycle (ie 1st week maintenance, 2nd week 200 below, 3rd week 400 below, and so on). Focus on the types of carbs you have when you aren't working out (low GI) and prework have high GI, and back to low GI post workout. As you lower your calories try to maintain pretty high protein intake meaning the a majority of the calorie deficit comes from carbs and fats.
good luck.
pzhang