just for the record, both technics EPA-100 and EPA-250 are 235mm + 15mm overhang = 250mm effective length, the maximum length for the SP15 OEM bases.
that's 9-7/8" effective length.
Tonearm for Technics SP-15
I have a Technics SP-15 turntable with a Grace 707 arm and a Grace F9E cartridge with a Soundsmith new stylus. This combination sounds great but is limiting. The 707 tonearm has a fixed headshell and it does not allow me to easily swap other MM high compliance catridges or match compliance requirments MC cartridges. Suggestions welcome from those more expert than I.