Apparently it's not that fussy about it. Those settings I listed last night were from my Toronto V-Scanner file (I'm in Toronto currently). I just checked my 'Home' V-Scanner and with that one I'm using:
Low: 380 Hi: 759 for all of them. Offsets are 380, 579 and 632. I don't think the lo/hi value is overly critical as long as the system channel values fall within that range, and you have the proper offsets selected.
Gardenlily46: I have sent your file back to you with a few changes. Give it a twirl and see how it goes...