Quote Originally Posted by OakLeaf View Post
GPS will tell you nothing useful about grade. It's the nature of satellite triangulation that elevation, and by inference grade, are extremely inaccurate.

If you must have an expensive gadget, a barometric altimeter is the ticket, but a $20 bubble inclinometer is the most accurate indication of real-time grade you can buy.

But she doesn't need to know what grade it is when her cadence drops below her ideal. Cadence meter will tell her that...
My computer is accurate. It is not a useless gadget. I improved my climbing skills considerably by learning the grades and focusing on my cadence.

Instructing Catrin on cadence skills for climbing is useless without clipless pedals. Better to give her instructions for how to climb on flat pedals. There must be some sort of technique for those types of pedals other than mash.