Would this be in reference to "walking" jump shooting, or "paddle" jump shooting?
I paddle jump shoot a lot in my Aquapod. My evolution in duck hunting started by walk-in stand hunting when I was 14. We tossed two pairs of decoys into a particular pond in a freshwater swamp that we knew we could walk both around and across, and we never took shots outside of it. We also walk-hunted for woodies both sides of a creek on our way back to the car. Although we didn't always shoot ducks, when we did, it always came to a rest on the edges for us to pick up. After moving to NJ, it took me alot of scouting to find a nice freshwater pond, but it eventually dried up. I then upgraded to a canoe and found a nice isloated pond in a saltwater marsh that I could get to. I acquired my 'pod to make paddling, and cartop loading/unloading easier... and I could now hunt from the 'pod (*yay*).
Paddle jump shooting plays a large part in my duck hunting strategy. I stay away from open water, and other hunters' decoys and paddle slowly in the small creeks which get flooded at high tide, trying to sneak up on them (if they're there), ready to shoot as I go around a bend. It's harder than you might think, with wind, tides, and current to bear in mind. I become one with the 'pod and the water, focusing on how the 'pod is going to float... as I go around the bend, I actively check and think about what my shooting windows are, what the effective range is, and most importantly, will I be able to get to the duck after I shoot it. I pass up on about half of my shots because of this.
I can understand being annoyed at people who take shots they shouldn't, either by walking or paddle jump shooting. Personally, it really really gets my blood boiling when I see people motoring around, after sunrise, with a guy sitting up front with his gun at the ready. Of course, they're not jump shooting ducks, they're simply "looking around" - I'm sure the gun is unloaded (note: sarcasm). Let's not even go there. I wish there was some way I could identify and report these guys.
Although I've never owned a motor boat, or had the living space for a large dog, I am building a Kara and I will be getting a BBSB from Dave in the spring. Also, my new wife has agreed for us to get a retriever when her cats pass away in a few years. I look forward to my continued evolution as a duck hunter. Joining this site has opened my eyes; I'm even starting to think about carving my own decoys! yeah... one day... I'll eventually give up paddle jump shoot shooting over time as I start to get out of shape (married life does that to you, or so I hear) and have less and less time as repsonsibilities at home add up... but duck hunting itself as a passion will always be there.
My $0.02
Anthony