In reply to nikinko:
Agreed, there are many criteria for input, height, difficulty, amount of overhang being, in an indoor climbing wall environment the major considerations. The number of rests taken is another
Clearly, it is very difficult to consider all inputs, but these are the main ones
We started off making the session calculator an indoor tool and having made something that seems to record the size of the session reasonably well now moved into the very tricky area of applying that to an outdoor environment
We appreciate that making the tool work outdoors is much more difficult...... For example, I recall the walk into Cym Silyn being a fairly pleasant stroll capped off with quite a long trudge up the scree. Outside Edge is an absolutely classic V. Diff with an easy walk off
Depending on the weather conditions the whole expedition could be a gentle summer's day outing or an absolute winter epic. Imagine trying to calculate the difference
However, essentially, www.ratemyclimb.com stats is an attempt to be able to track and compare the amount of effort that is going into your climbing sessions
And we are still working on it, so all input is greatly appreciated