Jennifer
Heres goofy Goosers suggestion..
Gadgets! Good for training, and making set ups more convenient for us...
I have always had really bad creepy dogs. They moved a LOT at the line... My hunting standards were also very low. I too jump shot exclusivly.
With this new dog...I got help with training. I cannot tell you the number of times at training days that I have been repremanded for missing the opportunity to correct for a "sit " violation.. Most all those times, where instances where I was in the holding blind. approaching the line, or at the line getting ready to run.. Many times also, it was after I had run the set up, and was picking up birds to put back in the rack, or starting a conversation about how we did.. Flinch would move!! Very slightly,,, and I would get scolded as to my sit standard.
I was told,, even during the week,, when with the dog,, to keep my eye open for opportunity to correct for a sit violation. It was amazing the opportunitys that exists that would give you a strong excitement factor, that didnt include field work.. when I started paying more attention to these circumstances,and really being critical about ANY movement,, Any time,, my "Sits" really improved
I think running the Y drill, by yourself, from a very close distance , could help you get instances where you could enforce a very high "sit"standard.
You can watch an example of the "Y " drill on Bill Hillmans Blog on top of page.
My Take!
Gooser