I just had one of my greatest leg workout ever for only 25-30 minutes after sleeping 4 to 5 hours. Just thought I throw that in here. I must be doing something write. Cardio is actually helping me recover. And some days I take a walk instead. I think I'm at the right workout level now for a fact. So Cardio through out the week except 2 days just a walk. Workout short preferable always less than 30 minutes, 2 times per day. Legs worked out every other day (3-4) per week. I would not do more than this.
Maybe this info can save someone else some trouble. I basically been trying everything out, what works, what doesn't, for other to have it easier.