Why is there always some bad who tries to argue against alacrity?
The theorycrafting on this is absolutely clear. You need alacrity as either a DPS or healing sorc. The way the itemization works, all pieces come with either surge, accuracy or alacrity. We don't need accuracy, and surge has a severe DR curve after around 300. So stack alacrity once your surge is at 300 and be happy with your faster force lightning and heals.
Shame there isn't a like button on here