I have 3 coils for the FBS machines, a Coiltek 15" WOT, an 11" Pro coil and an Explorer XS 10.5" coil. The 11"Pro coil has some sheathing issues, but, does not affect the performance. I have wrapped the spots with electrical tape. I'm selling all 3 coils as a lot for $185 shipped. You can contact me at [email protected], thanks.