I've enjoyed my very rare--to date--uncataloged 4th (removeable bushing'd late 3rd) Gen .44 Special (rare part - discrete chambering not an extra cylinder'd .44-40) - ca 2008. It's an outstanding piece.
I've seen only a very few of these post-2003's in .44 Sp. Last I looked Colt hadn't yet chambered the fixed sight SAA in .44 - since the earlier 3rds, despite overall increased market ("expanded niche"?) interest including chambering the re-issued New Frontier.in it..