Identifying large discrepancies in electrolyte loss (e.g., 500mg vs. 3.5g) is more important than the precise milligram amount lost in sweat.

“but even if they are you're not worried about the specific milligrams right whether you sweat out you know 1,250 milligrams in a workout or if it's 1340 it doesn't really matter you're trying to look for big big numbers right are you losing 500 milligrams using three and a half grams where you're at”