Re: Ashland Tri RR - 4 out of 5 ain't bad!
I usually carry three bottles filled with GU2O or HEED. (two regular 32oz "disposable" and 1 aero). However, I also prepare 8oz bottles of concentrated GU2O or HEED to mix with COLD water from the bike water stops. Then, at a stop, I chuck the water bottle, empty one of the little bottles into my aero bottle, fill it with water, and then keep the remaining water for washing down Gels. This has worked successfully at both Ironman Frankfurt 2006 and Mooseman 1/2 Ironman 2007. Its much better than using Powder to mix or using a hydrapak (too hot, heavy, and sweaty).