I ordered a set of Kuryakyn pegs from Oneida Suzuki two weeks ago and have them installed finally. So far I'm pretty happy but haven't gotten a chance to take them on a road trip yet.
More pics of them mounted here.
I had them for about a year. Two problems. First, the most comfortable angle for me left the extensions lower than the pegs and they scraped easily. I had to compromise and keep them at a flatter angle. Second problem, one extension froze up and I was never able to free it. I now have Isowings. No moving parts and almost never scrape.