GS, unless the bonded version, have an unbounded jacket that can separate upon hitting a medium (like a bad guy, or a barrier), resulting in inconsistent performance. It's a dated design, much like 9BPLE, Hydrashock, Nyclad, etc..
That said, they are still good bullets, and generally perform well. To use an absolutely stupid, but often repeated axiom "they work as well as they ever did."
The Gold Dot was the first of the newer generation of bonded jacket HPs that are just more reliable performers. How much more so is debatable and it does not diminish the efficacy of the Golden Sabre. But among those who really do a lot of testing (ie. law enforcement) and who really have a choice, i'd be willing to bet everything I own that you see more Gold dot carried in duty holsters than Golden Sabre.
Now, to address another issue. You mentioned that you bought these 12 years ago. Are you just now getting around to loading them for carry? If so, under what conditions have they been stored?