OK.I gave it to my bitch for two weeks,and ran a trial where she did ok by JAMing.I took her off for four days after the trail but started her back as I decided to run Memphis.Yesterday she seemed a little out of focus.....peed after the flier,popped hunting short bird of a pretty complex set up.Question is : does this stuff affect the abilities of the dog ? OR just an isolated lack of confidence on a mark.Note...I gave her the benefit of the doubt by having birdboy help,with no correction.