Maybe I can learn something new here, but having just re-read the ZO manual, in the language of the manual, while saying "it is when" not "where" ZO reacts, it goes on to say the various settings come on "where". I recognize ZO will responds when there is load from the skier, but with the graph, it appears the load "comes on" later on setting "A" than Setting "C". To me, that describes "where".
If a skier likes a "load" right off the buoy, "C' loads immediately. Conversely, "A" loads much later; based on the graphs. If I load the boat right off the buoy on "A", the pull is completely different than if I load the boat right off the buoy on "C".
I have attached the 2 pages from the ZO manual for reference. Greatly appreciate additional insight on this.
ZO PDF 2.pdf
ZO PDF 4.pdf