That sweet/salty taste test is clever, I'll try it tonight. I start with a bottle of 50% gatorade and top off with water about half way through, maybe I'll bring 2 bottles and not top off. In this group we are all pouring sweat for a long time - we do a 1/2 hour intense warmup leading to low-cadence, high resistance intervals up to 9 minutes long (that's this month, next month I think we do lactose tolerance drills after warmup. I am truly depleted by the end and I think trying to drive home on the soy milk just isn't enough. (I'm not a bad person, I'm just starving!) I'll bring some salty nuts and maybe some baby carrots to crunch.

Thanks for your help, everyone. I'll let you know how it goes.

I reckon I should experiment with some better beverages, too. Maybe my trainer can hook me up with some samples.