Refurbish Fidelity Research Tonearms


Would like to refurbish my FR-64s .... Has someone made it? Experience? Who? 
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Maybe, but I want to say that I’m happy with 64s, fx, fx pro, IT-345 tonearms. I like them all. 
I’m using a FX for the first time. I bought this as NOS but to me it seems like it was used but very low mileage. The VTF dial is smooth and light with nicely defined clicks. Bearings seems great. I don’t want silver wire or a 1 piece cable from leads to termination. Is there any reason for me to send it in to RM for an overhaul?

Unrelated question, the clasp that holds the arm tube to the arm rest rotates 360 degrees and is in the way of the lift lever when operating it up or down. I hold the clasp out of the way while I use the lever. Is this normal?