I posted this at Stealth Training board but I'm thinking that that board doesn't see a lot of traffic, so I will post it here, once it is answered, I will transfer the info to Stealth Training so that it isn't lost.

Can anyone explain ABS vs. AF and how it is all calculated? I know that ABS is a percentage and is based on the material of the piece of armor... in our case leather which has an ABS of 10%.

AF is based on the level of the armor and is 2x the level of the player on all armor types except cloth. I.E. level 50 armor has 100 AF.

Having said what I know, I still don't know how it is calculated. This question is most relavant when talking about classes with buffs and debuffs to these factors, but I'm asking here because... well... because this board has always been a reliable source of info for me.