Your article in the current RW shed some much needed light on the jungle that is sports drinks. I use sports drinks a lot and found your comparisons very useful. One or two questions occurred to me after reading it though which I hoped you might be able to answer.
What criteria did you use for suggesting what to use a particular drink for? A specific example for me is that I use Lucozade Sport and Isostar but not specifically and exclusively for pre-run, on the run or post-run hydration. What is it about Boots Isotonic that makes it so suitable for on the run rehydration, whereas Isostar is recommended for pre-run hydration and Lucozade Sport for post-run? Is it just the taste with Lucozade Sport which makes you think it isn't ideal for on the run hydration (this is what I use when running as I find the sachets easy to carry with me!)?
Hope this makes sense. Thanks in advance.