Ok, so I called Shimano tech support today and found out the CS-5701 chain, the one I bought, will not work with a triple crankset ( or will not work properly) but the CS-5703 or the older CS-5600 will work just fine. I've traded the 5701 for a 5600 in hopes that all will be ok after install over the weekend. If I have any issues I'll let you know. I looked at the packaging of the 6700 10s chain and it also said it was double crankset specific. From what I gather, the new 10s chains have to be of the 03 series not 01 for a triple setup, be it 5700 or 6700. If you look at the 01 series chains the side plates have a slot in them where the 03 series side plates are solid. Best I can figure is that the 03 series are stiffer and can handle the extremes of a 10s cassette. We'll see.