Aha!! A lot of folks don't know this but:
Shure tracking force gauges are made with stainless steel and cant't be used with MC cartridges! The large magnets in MC cartridges throw off the reading by a gram or more depending on the cartridge. (The magnets in MM cartridges are very small and do not affect the reading with the Shure gauge.)
Get a good digital gauge if your tonearm provides no method for determining the VTF.
Shure tracking force gauges are made with stainless steel and cant't be used with MC cartridges! The large magnets in MC cartridges throw off the reading by a gram or more depending on the cartridge. (The magnets in MM cartridges are very small and do not affect the reading with the Shure gauge.)
Get a good digital gauge if your tonearm provides no method for determining the VTF.