Can the average junkie really feel the difference between 96% and 99%?

I get that from a chemist’s standpoint, there would probably be a difference between 96% and 99% purity meth. But if you were the average junkie using meth, would you really be able to discern a 3% difference in purity? Would it be in terms of how much of a kick you get or how high you get or how long it lasts? Or is the 99% just slightly cheaper because of a higher yield?