Never bothered with anything on my Encore handguns beyond factory open on two barrels (454 Casull and 416 Rigby), had scopes on all the rest. But my favorite open sights for a Contender was the very rare (and very expensive) Wichita Silhouette sights. With the globe front and lots of inserts and the 4 heights preset rearto match ranges to your loads imediately changeable with a thumb wheeel, they were the bomb for competition and for hunting. Here's a copy/paste of a post I made here on GBO years ago about Contender sights FWIW...
"During all the years I shot IHMSA my go to sights were the Wichita Multi Range front and rear for my TC's, XP-100's and Wichita's, and factory sights on the revolvers. For the TC's, second choice was either the TC Ultimate or the TC Super Silhouette sights (which were similar), followed by the standard factory open sights. Some folks used TC's so called saddle sights as well for silhouettes. I tried them and didn't like them for various reasons and usually just changed my hold for the different ranges rather than mess with readjusting them (same as I did with the TC open sights). All of the TC sights come up for sale often enough to still find and afford them, the "wheel" sights the least often and more exspensive, but lots of luck finding a Wichita set for a TC and being able to afford them if you do. When I sold my last sets of them several years ago they sold for $300-350 per set."
Years later now those other Contender sights don't come up too often, probaboly the saddles the most often and they are not expensive. The prices above I sold my Contender Wichita's for was around a dozen+ years ago... I think the last set I saw for sale was $450, and that was quite a few years ago.