Thanks. I did read about the 'mutt's nutts' on the Kharlovka website under the archive pages. You are right, it was invented by some Welshman. I can't however find out anything about the fly. My brother and I have ordered a stock of hooks and new fly tying materials so that we can get stuck into our fly tying. We're now trying to get the recipes for as many successful Russian/Kola patterns as possible!
I'm fishing the Spey next week- it'll be my first time on any salmon water this season- I'm very excited. You don't fish Upper Arndilly at all do you?
Thanks once again for the help and tips