I was curious if Greg used the standard formula to calculate IFR with the change in pressure. As I understood it, it was (sqrt (new pressure/old pressure))* old flow rating. I ran the math on this for the short 60's and came up with a number 4 lb/hr below what Greg has listed in the DVD.
58/43.5= 1.333333
sqrt 1.3333333 = 1.1547
1.1547 * 61 = 70.4367 lbs/hr
This isnt what is in the 0 kpa column. Did I miss something?