[Lancashire Lad]

Hi Chris,

Thanks for taking the time to provide such a detailed and instructive reply.
Much appreciated. (Although I will now have to spend some time to try to constructively take in the implications of what you have said. ).

Regards
Mike.

EDIT - Well, at least I've now learned what "Erumpent" means. - (and I've just added the term to WAB's fungi glossary).