Micared - hindsight, we could all do with bucketfulls of that, but then life would be too boring for words don't you think!! Anyway hope your dog goes on OK, keep us updated on progress.

sti joy, yeah, hindsights a bloody wonderful asset....thanks for your comments and interest in the thread, and everyone else who's been on. I'll keep you posted as to future developments. :)

As I said - makes a degree of sense but not much in the way of independant research to back it up yet.