Very nice shooting!
The 10XX guns, especially the 4.25" "Commander-size models (1066, 1076, & 1086) were designed, first, to be fighting and self-defense pistols, not range toys or target guns. You can shoot very tight groups at realistic defensive distances out to, say, 60-ft just with fixed Novak sights.
My 5" 1006 sports the fixed Novak trijicons and there's virtually no difference in POI when shooting full-power factory ammo (UW/DT/BB) or handloads, regardless of bullet-weight. 155grns, 180grns, or 200grns. Doesn't matter. So a rear sight with adjustablilty just in order to shoot real 10mm ammo involving different bullet-weights, is unnecessary. (Obligatory pic of said 1006 attached).
There IS, however, a difference in bullet POI between, say, a full-power 200grn load (1200+fps) and a watered-down/40-level 200grn load (1050fps). Same bullet-weight, but that 200fps difference (give or take) does noticeably result in different POIs. That's why I stick to shooting 10mm ammo, and now mostly handloads, that yield velocities in the cartridge's upper range (85% of full power) for a specific bullet-weight.
All that aside, ... S&W 3rd Gen adj. sights look like an ugly snag-fest waiting to happen, if you ever actually conceal-carry the gun. If it's just a range toy for occasional plinking on lazy Sunday afternoons, I guess it doesn't matter.