This is a great looking gun, but I am not too sure I could handle adjustable front & rear sights. Being a proverbial tinkerer, I fear I would spent more time at the range adjusting and tinkering instead of shooting. Of course it would delay the fact that it was my shooting that was the problem and not the sights.
Those old silhouette front sites were interesting gizmos ,
The new interchangeable front site system is not as quick on the fly and requires different pieces be dropped in but allows for quick change of front blade style and is a little more streamlined with slightly less moving parts.
Twenty years or more ago we had a little indoor PPC league at a local range. My shooting partner had a six inch 686 with the four-position front sight to which he added a slip-on weight on the underlug. He campaigned it quite successfully for several years and thought very highly of it. A little too heavy for my taste, though.