This was an important question to me a while back and I asked around because in pictures the hammer looks like it obscures the rear fixed sight. Someone posted several angles on the sight picture from their DA/SA 2" and the sight picture looked clean; poster said they had no issue with obscuring, fwiw.
I carry bobbed and hammerless DAO revolvers and like them, but after a lot of time with them I've arrived at retaining DA/SA capability with a minimized spur to be the preferred configuration -- best of both worlds.