So since I work the graveyard shifts, I thought I would browse what companies make aftermarket stuff for our beloved Tesoro metal detectors. I have came across several places that have fiberglass and carbon fiber shafts (Anderson). Another website has coils that are only used for the delta series detectors (Mars md) the same website has a "universal shaft" for our detectors on here also. I was wondering if you guys are using any of these products, and if so, what do you think?