Kuryaken (spelling?) does make some good stuff. The only reason I didn't put them on long ago was the inability to use black ones with bar end mirrors.
The Bikemasters I started fitting and the scrapped were quite comfortable, but the Rizomas are much much higher quality (and price). Fair warning, the Rizomas will transfer every bike of vibration in your bars straight to your hands, so if you clamp when riding (I doubt you do given the mileage you ride), your hands will complain dearly.
I don't clamp anymore so a textured metal tube would be fine lol.