@JLS my wife tried an e-collar when she was a pup but it was only used a couple times because she didn't respond well to it. I dont think she's ever used a clicker. Both of those crossed my mind but I didn't know if it would work since she's 4 years old now...? I'm all for using it if it'll do her good. I don't know much about dog training. I guess I sort of assumed it wouldn't work very well now as an adult and I'd have to struggle through the old fashioned way and hope for the best
You don't have to use a clicker, we just use a marker command of "yes" whenever Finn does what he's told to do. Sometimes that comes with a reward, but not always. I don't think 4 is too late to introduce this, particularly if obedience sounds like it's quasi-optional?
Collars can be damaging if you use them wrong. They aren't a substitute for training, they are just a part of it. You should never use a collar on a dog where you don't have a known command the dog will obey. I.e. if your dog knows the "come" command, but deems it optional at times, do this:
Put the collar on, start in a closed environment (a room, fenced yard, few distractions). Give Fido the "come" command and apply a light level of stimulation (should be just enough to make them tip their head a bit). Hold the stimulation in until Fido heads towards you then give your marker command and immediately release the stimulation. If Fido gets distracted, repeat the command and reapply stimulation. You are teaching the dog to yield to pressure. If you're then in an environment where there are distractions, you may have to use a stronger level of stimulation. That's fine, just don't fry and dog and wreck them. I hold the collar in my hand and grip it, so I can feel what each level is like for intensity.
You can then use the collar for any known command. Tell Fido "down" and hold the stimulation button until belly is on the ground. Immediately give your marker command and let off the collar.
Make sense?