I've not seen the CPR Medusa BG "in the flesh", but CPR have sold out of them if you were looking at buying one !
Thanks Nino,
Oh well, that solves that problem doesn't it.
I would have grabbed one but wasn't happy with the colours on the Fathom or Flash Gordon ones I brought and needed to be sure this one would be better. Of course the repos are better than nothing and it's great to have the option but I ended up finding a really nice original glass for Flash Gordon and the CPR one will just be a spare.