O.K. here is the story I have 2 1/2 year old ylm that received his Senior Hunter title last spring. Went straight through seniors with no problems. I entered him in his first master test and in the second series after picking up the marks we ran the water blind which was 140 yard water blind with alot of suction. about ten feet from the bird he blows off my whistle (I was in shock) he had never blown off my whistle before ever. There was no recovery, all other whistle attempts were ignored as well. He continued to hunt until he found the bird on his own. Ever since that experience this has become habit, even with the collar on. In training it happens more on the water than on land but even with pressure from the e-collar he will still blow off the whistle and start to hunt. If the heat gets turned up too high for the whistle refusals he will either freeze up and refuse casts or take the heat and hunt anyways. I have never had a dog that has had a problem like this that was this severe any ideas or help would be appreciated. BTW this problem cost me a damn fine run in the qual last weekend which is why I have decided I may need more heads than mine to fix this problem.