I spoke to Jico yesterday and they gave me some excellent news?

Here is a copy of their email transcript.

Dear James,

Thank you for contacting JICO and choosing our stylus.

Regrettably, with the launch of the Custom Shop series,
we discontinued the production of SAS replacement styluses for the SHURE M55E series due to certain categorization changes.

However, we offer the SAS stylus for SHURE M44 series.
It would be compatible with your cartridge.

Here is the link below.
https://www.jico-stylus.com/?s=N44-7+SAS

So another option to get a alternative high performance from the M55E!