Critical heals

[Concillian]

I'm not sure what you mean here, but I'm almost certain that 20 Agility is +1% crit for classes except Rogues.  I haven't really tested this, but I think that your critrate goes down slightly with every level-up, which would explain why lvl 60 rogues don't have 100% crit :)

[right][snapback]67054[/snapback][/right]

Crit rate does go down slightly with each level up. This means that clvl is part of the forumula, and the 20 AGI = +1% can't be true if your crit rate goes down when you level.

Try adding some +AGI gear and see how it affects your crit rate. The effect is straight linear, so even small +AGI pieces work. The function is something like:
Factor * clvl AGI = +1% crit

I assumed the faactor was one. In the case of Rogues that factor is very near, if not exactly 0.5. In the case of other classes if it's not 1, it's pretty close, maybe 0.9 or so.

but at clvl 60, 20 AGI for +1% crit is way too steep, it's definitely not that steep, even for Rogues.