faux_maestro
New
The problem with Pelz's 18/17" is that it's an average from all the other averages so one size doesn't fit all. Too big a disparity between grasses for the average for each grass type to work for all grass types. Mangum's analysis is spot on in his book.
I'll just say look again at my last post. Yes it's an average but again, based on experience, it can and should change depending on conditions. Mangum and Pelz I believe would agree on this, the disagreement is on the average number past the hole.