I use Cytomax Lite. It's not as thick or sweet as regular Cytomax. It doesn't have protein in it, so on a ride longer than 90 minutes, I take an Excel Gel, which has protein.

My dh is now into Perpetuem, another sports drink, which does have protein. It's soy based. I had stomach problems the 2nd and 3rd time I tried it, so I went back to Cytomax and take the gels. My stomach problems might not have been related to the Perpetuem, but I'm not taking any chances. Plus, the soy in it gives me allergy issues.

I have heard of loading up on extra salt the day before an endurance ride, but not carrying salt with you during a ride. This is interesting. However, I don't sweat as much as some people, so I don't think this is as much of an issue for me.