Hi Chris,...No, can't say I've had any experience in that department. Took a little interest in gundogs some years back and I understood that the handlers needed a little training to work with ready made/trained gundogs. Sounds like your mate had some bad luck.
Keeper on a shoot near me trained his own lab' and went on to win field trials. Bloody great to see a good/proper gundog do the business, can a lurcher do the same I wonder!
My grandad used to work a lurcher along side a springer that would retrieve duck from water ,sit and stay untill told to retrieve and at times put