I switched to KMC this season and as far as 10spd chains go I am not looking back. I've put 2 DX10 chains that I bought for about $25 on 2 drivetrains with very satisfactory results. One was put on aham23's rig. He was nice enough to buy me an SL (at least that's what he says ) as a replacement. Almost can't wait for the dx to wear out so that I can give it a try.

...unfortunately that may be a while.