My experience with the Shure gauge (vintage 2006) and a LOMC cartridge lead me to the conclusion that I won't put a Shure gauge anywhere near my cartridges anymore. The supposedly non/low-ferrous stainless platform had enough magnetic attraction to pull the cartridge down and collapse the cantilever. Luckily the cartridge body has an inset that prevented the cantilever from collapsing completely so the cartridge is OK and still plays fine. I now use a digital gauge.
Tom
Tom