I just had to email you to let you know of my experience with my little dog!!
I have a Bichon Frise, who is smaller than the average Bichon, but I have tried and tried to stop him pulling on the lead, but to no avail. I suffer with a bad back, and although small he's a strong little fellow and walking him had actually become quite unpleasant. (And painful)
This morning I took Barnaby for his first walk with his Dogmatic!, and it was like putting a miracle around his neck!!!! I would not have believed that it would just stop him from pulling just like that! But it did!
I just wanted to say a massive thank you! Walking him can now become a pleasure again. I don't think I would ever use another collar!!!! Oh and as an added bonus you actually had one small enough for him!