Don't like it but don't have any idea how to fix it or know if it is worth the trouble to fix. Or will it go away when we start to handle in the field?
If you think that the dog watching you walk out to them isn't perceived as pressure by the dog then I would have to say that you aren't the pressurre guru you claim to be.Watch your timing with some of these solutions. If she's laying down to escape pressure and the first thing you do is turn the collar off while you spend 20 seconds walking 50 yards out to her, you've just given her exactly what she wants.
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Make that "next challenge" a ways down the road until the dog gets habitually 100% into the sit rather than even occasionally lying down. Then reintroduce the sit-nick-sit sequence at a lower stimulation level.Next challenge I think is going to be how to make the sit quicker without the original problem returning. Open to suggestions.