Keep Attack Speed Inner Ability on my Angelic Buster?

Not using any hurricane-type skills? Then it's approximately 10% increase in final DPS (as in, this is the final final "multiplier"). I'd say, keep it.

Some math for you: with Star Gazer and a rough 45% base crit rate (30% SS mastery, Hyper and bits and pieces here and there), you are doing 207% damage when you crit (1.2x * 1.45 min crit from SS mastery and SG, 1.5 * 1.6 max crit from SG) i.e. 148%/s raw average. If you now get a reasonable 25% crit from Azwan, then at 70% crit rate you will do 174.9%/s raw average. That is about 18% increase in DPS. It is alot to be fair. The minimal amount without overshooting 100% crit i.e. starting from 75% base then your increase in DPS is about 14.8%.

Numbers seem to be telling me that %crit is better, because of Star Gazer's massive bonuses to crit damage. But 10% increase in DPS from IAS is already very respectable... will you kill yourself for running through 500 circulators and not getting any %crit better than 15-20%?

Hadriel

Thank you for the detailed answer. If it comes down to needing the high end crit bonuses I will gladly stick with the attack speed. The extra dps from crit sounds very nice though, which gives me some motivation to get the phantom link.