Man oh man..... reading all the dick swinging pissing contests on here made me feel like I was on fakebook... lol.... Anyways, I figured I would give my experience with Advanced Nutrients Flawless Finish since no one is really giving any useful information lol.... Here was my test... 3 White Widow Pants, last week of flower, one given only 2ml per liter of Advanced Nutrients Overdrive, the second flushed with water & the third flushed with AN Flawless Finish... all dried and cured the same time, about 2 months.... the Overdrive plant tasted sort of like a tin can lol... but still decent, BUT I use vape chambers and it would gunk up a mouthpiece and chamber pretty quick with a black tar laden ash. The Water one smelled less vitaminish and tasted pretty good/smooth and did not gunk up the vape chamber/mouthpiece as bad and some had black tar ash and some more of a white ash, (2 weeks would of been better for water), as for the Flawless Finish, I am going to say there is some truth to it smelling a little better, the bud itself smelled better (not much, but a little sweeter/more dankish, non vitaminish), but the burnt bud there was no difference in smell, as for smoking, it was about the same as the water one, MAYBE a little smoother, some black ash, very little, but more white ash. I also cough less with the Flawless Finish one, even tho I hardly cough on the water either, unless I empty the entire chamber into my lungs. My conclusion is that there is a noticeable difference between not flushing and flushing with water, with a little improvement in all areas for the Flawless Finish, possibly making proper flushing time quicker as well... Other words, I will buy Flawless Finish over and over again, even if the majority on here say I am wasting my money... I am going to try it on the big bud crop I am about to flush this week, pretty much every plant... I am that confident in it...