My opinion is that he is just not a hunter.... Just because he has a good pedigree or was from a guide does not mean he is a hunter.... Who knows how his training went and how well he really liked it... I have seen dogs get hours and hours of training and given the chance they want nothing to do with hunting... I think that some dogs are over trained too early in their life... Just think he is only 3.5 just becoming a mature dog... don't give up on him my friend... Might try to make it fun again rather than so much stress... He knows how to hunt...