I agree its a decent group but I don't know if I would call it the best. I think your quote of "my Tiagra shifters work better than my 105 might have been from one or two of my recent post. If you will read what I wrote after I credited it to the correct adjustments. yes my Tiagra shifters 105 RD shift great and I have no complaints other than the 9sp thing but that's only because its well maintained and finely adjusted. Even DA or Red will shift like crap or not at all if they are set up correctly and well maintained. All in all its not bad stuff especially for the price but there are things I would change. It shifts great though