Gear I would say the exact opposite. I've now seen Yellows melt themselves to rims a couple of times. The Yellows are better than several older rubber-for-carbon pads but are not a better choice than the Tangente Cork or Baradine pads or Bontrager or D ace cork combo pads in most conditions and especially on long hard down hills.
OK, so I saw this yesterday and went home and put the Zipp wheels on the bike with Reynolds pads and the Reynolds strikes on the bike with Zipps pads.
For starters, Zipp cork pads are not just plain cork. They are like the Baradine...
Zipp (look more like cork, but when you touch em you cna feel they are no place near standard cork)
Both are a mishmash composite like Bontrager / Duraace pads that I have said in the past are now my prefere pads over Swiss Yellow.
Anyhoo, the zipp wheels have a different braking surface than Reynolds and they tend to have better braking power but also chew up pad material faster... The Tangente pads work well on Reynolds and the reynolds work well on Zipp. The "feel" is a bit like the reynolds chew up faster, but as I just rode em each for 10 minutes on my mini Crit course and then swapped back for 10 minutes each, I would say they both perform pretty well. The Reynolds can be a little more statchy but have a bit more bite than the Zipps too.
It was 80 degrees or so and neither were heating things up in any odd fashion and I rode the brakes for a couple minutes with each on each wheel at the end of each ride.
I would add the Tangente and Baradine pads to the Bontrager and D ace combo material pads as my pref pads for carbon right now... Theyr'e both very good.