I did that to the saddle long before I changed the stem. I tried to match the reach etc on the new custom bike as closely as possible. (The stem unfortunately is slightly too high, but it doesn't bother me.) That was the saddle that came with the bike, and I have never found anything more comfortable, except a Brooks.
You sound familiar with the area. I live right off Ice Cream Grade, if that means anything (the extension of Felton-Empire).