I agree with K9 man. What I did when I first got my e-collar (I have a very hyper boxer). I initially did all of his obedience with a chain then a prong collar when we graduated to distractions and correction. When I wanted to use the e-collar for off leash, I would let him wear the collar, turned off, all day, just like a regular dog collar. I also went back to the chain collar, since that is what I usually take him out in. I started over with the obedience corrections with the chain. Of course they were near as respected as the choke, but that would soon get fixed. I also did this with the e-collar on his neck, but corrected with the chain. After a few sessions of this, I would correct with a e-collar (have to find the right setting for the type of correction needed), with the chain and leash still attached. The dog still thinks the correction is coming from the chain and not the e-collar. To avoid the dog avoiding the both collars, I put them on him through out the day and just have a fun time (ball, chase, swim (my e-collar is water proof) etc.) This way he doesn't always associate the collars with work. Has been very successful for me.