I've been told by a bunch of people that without skills or gear you should have a base crit chance of 10%......except if i take off all my gear and unslot all abilities, i have 0%......this would explain a lot when it comes to crit calculation as an increase of 2.5% off a base 0% would still be zero.....either way need some input from fellow players to see if it's just my character being bugged or what.