Yes, there is something about three inchers. I have a couple of S&W 3", but all my Ruger Sixes come up just short.
I also like the 2-1/2" Smiths, they are just an extension of your hand once you get used to them. Guns with in this 2"-4" barrel range are just balanced perfectly and allow natural aim. I out shoot myself with my model 66, 2.5" vs. my 5" 1911.