I really wish I could say "oh yeah....I understand", but I sure don't.

I don't see how the mechanical feel assy on the snoot can make the SF1 repeatable accuracy become SF2 repeatable accuracy. I believe the JD row guidance will work withOUT the row feelers, like in crossing waterways etc. So, what repeatable accuracy do you have then? SF1 or 2?

So, if you took the same monitor out of the combine & put it back in a tractor w/only SF1, do you have SF1 or 2?

I try to understand the JD stuff, but it's confusing to me.