There was just something linked here (twice actually) that said your stomach empties faster if you gulp rather than sip. So if you're feeling sloshy, try drinking just every 15-20 minutes.

Also, cold beverages are supposed to empty from the stomach faster than warm ones, if it's possible for you to carry an insulated bottle/pack or add some ice to it before your run.


Simultaneous post: if a slow pace hurts your knees, that's a great opportunity to work on form. I was a very heavy runner until I started learning Chi Running. Building miles for me has been all about working on form and learning to run more slowly. A slow pace should be comfortable and just as light as your faster paces!