I think I may have a problem. I attempted disassembly of my E-4 Fattboy today to take it to be replated, and I can't get the TTO knob to separate from the main shaft. Will this be a problem for the plating company? I never intended to do any disassembly of it but the plating company insisted they would not plate it if it is assembled. I'm in the dark here, can anyone help? I have the rest of it already taken apart.