In general, I like high ride holsters. The N frame Smiths are well suited to a tight, high ride holster; I've carried several over the years.
I'm not sure about the holster you cite in particular. I did a search and found a Galco Silhouette, but it seems to be for a 1911 pistol. I looked at the Galco website and didn't find anything called a Silhouette. Could you provide a site with a picture or such?