Originally Posted by
Izzy
610 requires you to have 10 blessing lore to unlock the +25 AS buff.
625 procs +AS buff on spell casts, and that AS only applies to physical attacks. The counterpart is spell haste procs from physical attacks.
I'm fully trained in Spell Aiming on my ranger, and I mess around with in in the Hinterwilds from time to time (with full +SA enhancives and bunches of buffs) - and it's only okay. The main problems with it are pretty much the universal problem of bolting - it's just not that good by itself. Wizards get away with it because of 515 and big AS. Without both of those, you're chasing suboptimal hunting methods.
So with that said, if you're determined to make it work definitely seek out 211/513. Thankfully 614 makes it pretty easy to get both (just get some cleric/wizard friends to imbed a bunch of rods). You can get double the MIU bonus at 40 blessing lore to make them last longer too.