Sort:  

Yeah I'm interested to see. I guess it depends on the weighting - tempted to give a little more priority to these new metrics.

EL stands for engagement, so maybe weighting the metrics that really are engagement in its correct form, will probably be beneficial I think. Your choice though. I'm sure you'll come up with the right way forward.

I'll have a go, things can always be tweaked if there is public outcry :)

Yeah, there's always that...people don't tend to like it when things don't go their way.