With the old style SA, you'd get like, what, 200 crit rate with buffs? With runes you can get 500 with some effort. Unless you're farming 1/2 HP mobs, with the rune system you're going to farm much faster. It will just take slightly more effort since you're going to use corners more and plant the hits more wisely, but unless you're a bot (and even if so) you're going to be very happy with it, trust me.