We purchased these to get our dog used to wearing the collar and not become collar wise. Where they know where the stim is coming from. We let her wear it for 2 weeks with no stim at all. She'd wear it whenever we went outside, or when we went to the store or walks so on. And it worked well in that manner. But these seam to reduce the stim allot. We had it set at 10 to 15 for intense stuff. But with this we had to turn it up to 15 to 20. And even then it's not as strong. My wife used the boost button with the regular prongs and it dropped our poor pup. My wife accidentally hit the wrong button. But with this we hit it on purpose today cause she was trying to get her back under control and it didn't even phase her. We used the boost twice today. Once when she got in the trash cause it's getting to be a real problem. You could see her tense up a little bit but kept on going. With the regular prong the continues button on 10 would stop her. At 15 she'd be jumping to get away from it unless she was in high drive. Then it's just enough to get her attention. We followed the Michael Ellis videos on ecollar training and are using low stim but even at high stimulus it didn't really phase her. The regular prongs are more like a poke where this is more of a light tickle.