Shimano Cables

hubcap
hubcap Posts: 163
edited March 2013 in Road buying advice
In terms of performance, is there much of a difference between the standard Shimano gear & brake cable sets and their PTFE coated ones which come in different colours?

The PTFE ones are about twice the price but are they really that much better? They will be used with 7800 Dura Ace so no gear cable routing under the bar tape.