When doing any dilution technique (that also includes the overpriced magic potions) use the gatorade in place of water to help keep the urines SG within acceptable ranges.
SG (specific gravity) is tested along with creatinine in determining an overdiluted sample and large water consumption will cause the readings of these two urine constituents to take a nosedive and out of the acceptable ranges.
Following the dilution method, what would happen were I to drink, say, 12 fluid ounces more than is called for? Could this cause me to test worse than had I not drank the additional 12 ounces? (the additional 12 ounces would come from the Mega Clean were I to use it.)
Drinking more fluid volume than what is required under the Dilution sticky will certainly increase the chance of the sample being ruled overdiluted. Why deviate?