I have wondered this for a long time. I remember years ago reading something on Thief forums that 1 evasion skill = 2 evasion. By that rule, then one would think that they have to stack as much evasion skill as possible for their evasion setup. However, I've noticed the lack of evasion skill equipment additions in recent updates. Instead, there's a lot of equipment pieces that have evasion.
Could someone, somewhere give me a good explanation of the difference between one and another? What benefits do I get from stacking evasion alone. When should I stack evasion over evasion skill.
Any input is greatly appreciated.