I switched back to my alloy rimcarbon fairing wheel set for the Mtn. Momma century. Lots of climbs - I counted 9 with epic, switchback descents. Not once did I feel out of control braking as the Shimano pads instilled confidence in the turns.
These replaced the stock pads that came on my Specialized Allez. They fit perfectly into the stock shoe housings, but the new pads were noticeably better in both wet and dry. These were a good investment!
I have never been disappointed with a Shimano Dura Ace product.
The quality control is so good , I have never experienced any problems.
So, for me, the slight extra cost for Dura Ace is well worth it, and almost always less than the other high end groups available.
I don't experiment with other chains, brake pads, cassettes or anything aftermarket as I feel Shimano makes the Dura Ace parts to work together the best possible.