I just left mine as is in the end ?, may revisit it some day, though about drilling a 1mm hole in the bottom and filling with silicone grease then seal the hole with a tiny grub screw
I rewired mine with the SME loom allready soldered to the head shell lock nut
I initially just rewired it with cardas but its very easy to damage the little springs in the head shell lock nut pins and I got one sticky one that kept loosing contact. The SME loom was a breeze but not cheap.
Changing the arm tube earth wire is tricky as well
Alan
Turntable - Garrard 401/Jelco 750L/Ortofon Kontrapunkt B, Pioneer PLC 590, Micro Sieki MA505 , Denon DL103R - DIY Paradise Phono stage - Reel 2 Reel Studer A810, Otari MX55,Tascam BR20, Revox A77, B77, PR99, TEAC X1000 & 3440, Digital HTPC / Young Dac - Preamp - DIY B4, 821, Power Amp's DIY Avondale NCC300 Mono Block, Speakers Wilmslow Kit Volt BM220.8 / Scanspeak D2905/9500