You have to go outside the window of homeostasis unless there is an incredible need for an item.
To generate need you have to either deplentish glycogen completely or enter the citric acid cycle.
The only thing max bloodflow would do in my opinion is actually lessen need because of glucose transport from stored regions like liver and other muscles.
45 minutes at 70% max heart rate enters you into the citric acid cycle (without helpers like T3 or Clen).
Glucose replenishment is not a body priority until the brain cannot find what it needs to function....then...you enter citric acid cycle. The citric acid cycle requires many different types of acids and aminos which are not found in large quantities in the body. This in turn makes need. Need only for the items in the citric acid cycle production list.
I will state a possible caveat in this. EXTREMELY low calorie diet (1000 or less calorie a day) with dehydration and extremely low bodyfat (<8%). Your body is already in the citric acid cycle and anything you put in would benefit from the increased metabolism as long as you do not pass out. So if there is a time for your theory I would wager it is while cutting and at the end of your cycle.