Anyone in this topic pulled the trigger on either one? I am in exactly the same situation and really don't know what to do.
Price and ease of installation on Stages are really tempting, but am really in doubt on one leg measuring.
power2max is not as easy to install and about twice the price (I could reuse my DA 9000 chain rings), but measures both legs.
but what is it that makes it so hard to install p2m? as a se it, of those two, p2m type 2 seams to be the best. Sure, stages will be even easier to instal, and are smaller/lighter, but you always comes back to that it measure one leg and dubble it. and even if it´s mostly okay and right i can't se the reason when you have two. and is it really twice the price? here in europe it is different in price, but not twice