I'm thinking the best way to level your parrying (besides leveling PLD or something :lol

would be to equip a bunch of -evasion equipment, find out what level your parrying would be capped at (i.e. 105 is the cap for a level 34 THF), then go find mobs you'd exp on at a couple levels higher than that. Go engage them but turn around so you're not attacking, and just let them try and hit you. Then just continue to move up the levels in mobs as your parrying skill rises.
What I'm not sure of is if parrying skill+ equipment (parrying knives, THF AF hat, etc...) would help or hurt with this. Can someone clarify?