Ah, think I figured out the issue. I've used switch's on URI's for a long time, but usually I don't double quote the URI in the match, but figured it was better to do that
It looks like that coupled with not having the trailing asterisk prior to the last double quote was causing those matches to fail if there was any other characters present in the URI. Originally I understand the trailing asterisk to be unnecessary as the match text was a subset of the real URI, but once I realised that the only matches that worked had the trailing asterisk that seemed to be the clear issue
so for all of these:
"/csp*kw=??aceb*k" -
they needed to be this:
"/csp*kw=??aceb*k*" -
Nimbostratus