I have loaded thousands of pistol cartridges (Cowboy / SASS usage) and have been unable to discern any appreciable difference between Carbide and Titanium coated dies. I personally like the Hornady bullet seating arrangement, so I tend to favor the Titanium units. That said, SASS shoots are not bench rest competition.

“You must endeavour to enjoy the pleasure of doing good. That is all that makes life valuable.”
Robert E. Lee, in a letter to his invalid wife.