A prong can be a valuable training tool, but I believe the same as you, start small, find what works for your dog a prong, or a shock for that matter, should always be a last resort. Personally I completely bypass the choke collars though, most are not smart enough to understand them, IMO. I used a prong on Gage, and now I rarely have to put it on him, and the older he gets the less I use it.
it's interesting how the prong works. As I said, I just put it on the dogs and just by its weight, they get back on track. The last few years, I only use it if I knew they weren't going to like where I was taking them - i.e. the vet. Ever have a 90# dog jump into your lap? lol
Nope, have a 150+lb one do it quite routinely though, LOL. I use it now if we are going somewhere I know he is going to need the extra correction, like a street festival. I dont even need it for places like pet supply stores now.