Yes it's good if you can find someone as good as Martin Townsend, he used to work in the same University Dept as me, and I still see him around from time to time.
I contacted him today, but still waiting to hear if I caught a Dusky-yellow Sallow or not!
Ah, thanks Julian. I had been looking for someone good with moths for second opinions, but I'm in London. I will have to find our recorder. In time for next year.