Free: Contests & Raffles.
If you plan on collar conditioning your dog properly, I'd put up a kennel. Properly collar conditioned dogs typically will "GO" on pressure not accompanied by a whistle sit. Chessies find contradictions such as this particularly confusing. A confused Chesapeake is not fun to train or attempt to get something out of with advanced training. In a vague order: Dogs are forced fetched and taught to "reach" early upon the application of pressure. Often from the e-collar or ear pinch or both used concurrently. Dogs are forced to the back pile via the use of the e-collar and/or in conjunction with stick pressure. The proper response to said pressure is given via stimulation from the collar. The learned and taught response is for the dog to "GO" away from you with great enthusiasm. The more pressure, the higher the drive response to "GO" further and faster. Saying "NO" and putting a correction on a dog makes a location "hot". This is similar to the invisible fences. Should you use your invisible fence, what ends up happening is the dog will learn the fence line. Learn it gets corrected for getting near the fence. Fast forward to a training day. Lets pretend you've collar conditioned your dog properly. You make a correction in the field. The dog now understands a correction is a barrier. You will likely get one of two responses; the dog will bolt through the area or, simply refuse to go near the area which it now thinks has a fence. The owner(you) have now just created a situations which confuses the dog. Chessies think about stuff and when they get something on their brain is sticks around for a long time. Getting a dog confused because of corrections is particularly dangerous ESPECIALLY with a Chessie. Tip toe carefully around this notion of e-fences, e-collars and Chesapeakes. You can get all your eggs cracked in one basket in a hurry. Easy answer, put dogs in a kennel when you are not doing something productive or active with them.
Controversial? You are joking right? Nobody ever burns to a retrieve. When you are doing force fetch, you apply pressure until the bird is in the dogs mouth. When working a back pile, you may mix a burn with a nick and the word "back". There is no burn all the way there and certainly the only correction you'd give a dog on the way back is part of collar conditioning. That would never be done on, around or near a retrieve.
Pointing dogs have little in the way of collar conditioning in comparison to the most commonly accepted methods of retriever training(very simply described above). Pointing dogs do not handle in any precision as retrievers are required to do and beyond a very loose cast and breaking out a pointer.....there are no similarities in training methods.