GVT is tough shit. i tried it for a few weeks and its very rough...very humbling also.
the way DC is outlined, you hit the same bodypart twice in 8 days. you don't have to necessarily look at your regimne based on a 7 day week. why not the long run, like the entire year. that may or may not have made sense. basically, doing the typical magainze type workout you train one bodypart every 7 days, correct? well, with DC, you train each bodypart twice in 8 days. so instead of only training one particular bodypart 52 times per year, you would be doing it more like over a hundred times.
here's how you could set up your routine based on DC or in fact actually using DC. this post will probably go ignored, but i'll post it anyway.
basically, you will have 2 workouts. workout A and workout B.
workout A chest/shoulders/tris/back width/back thickness
workout B quads/hams/calves/bis/forearms
mon - workout A
weds - workout B
fri - workout A
mon - workout B
weds - workout A
fri - workout B
etc.... make sense?
now, inorder to recover in between, volume must be very low. take your 3-4 exercises per bodypart, 20-30 reps per exercises mindset, go to the nearest window and toss it out. take your volume and cut it in half. stick to compound movements, military press, bench press (incline,decline,flat) deadlift (sumo,rack deads,conventional) etc... what i would do, just to start off would be pick one compound exercise, and one auxillary such as flyes, cable pressdowns, etc... for workout A, something along these lines.
workout A chest/shoulders/tris/back width/ back thickness
chest - flat bb bench/ 2 work sets of 6-8 reps
flat db flys / 2 work sets of 8-12
shoulders - seated military press/ 2 work sets 6-8 reps
side laterals/ 2-3 works sets of 8-12
tris - close grip bench press/ 2 work sets of 6-8 reps
rope press downs/ 2-3 work sets of 8-12
back thickness - conventional deadlifts/ 3 sets 6-8
back width - wide grip chins to failure
now do something along those lines for workout B. i don't feel like typing that out. use your imagination. try this out, and if you feel you aren't fully recovered by the time workout A returns again, then lower the volume even more the next go round, or you're not eating enough/resting enough. now what i listed is NOT DC, just something to get you situated before you actually try out DC. but pretty much, thats how you would outline a 3 day split.