It was early 90's I believe. In addition to the appearance differences they also slimmed down the grip and made some of them a little lighter. Some of them were exactly the same as the regular version except for the name.
Over the years I used many smiths for training and duty side arms. They did the job they were designed to do. I also bought one for my second wife. A Centenial hammerless 5 shot 357. 2 3/8 inch barrel. NICE pistol. Gave it to my dad after she died.
I also have a little .380 hooker pistol by S&W that I carry during the summer. It's utilitarian.

David