How far is too far? Coil location

I don't know the answer, but I do know this. The closer the better. If that helped any.
Agreed, heck, even the Main speaker cord from a Guitar head to the speakers, should be as short and fat as possible... when i was jamming in clubs and bars in the early 90s, thinkn the one fer my Marshall was 80 bucks... but Oh Man, the Tone... it's a Resistance thang