Thanks for the feedback you two. I was hoping I could take it, just to download at the end of the weekend to see how far and how much height i had run, but I guess I'll be leaving it at home. Strange that my Forerunner is banned, but altimeters are allowed? Surely one of those fancy Suunto watches that give accurate altitude readouts is more use than a Forerunner when looking for a control in the mist?

