Yep, I use ProcMeter and it works quite well for my mage. Only inconsistancy is my mana restore metagem, which procs on anything (blink, buff, portal creation...) which I don't think are then added into the "cast" or "attack" catagory, so my attacks remain the same, but the percentage of procs go up a bit inaccurately. Of course, as mentioned, this is skewed even more on locks, as nightfall has several ticks per "attack" to proc (and can theoretically proc on any and all of those ticks). It's still good enough for a rough reference on procs like these, but a more accurate version would be ideal. Also, ProcMeter did seem to eat up a relatively large amount of resources (I think cpu cycles, if I recall, but could've been memory--I've got lots of both to spare, so don't really remember).