In all of my reading here, one of the reasons people say they prefer the double over triple is that it shifts so much better. If I were to convert a triple to a double (say, bonktown Ultegra double compact), leaving the shifter as a triple but adjusting whatever needs to be adjusted so it thinks it's a double, would it still shift as well as a real double setup. I keep seeing all these triples on CL and it got me wondering. What part of the system makes a double shift so much better? Or, is it the entire system as a whole?