Hey guys, I noticed that Sentries have really low cooldown on their attack but a really high post-animation or whatever you call it. As in, the moment they start beaming, they already deal damage but they continue to beam for nothing for about a second afterwards which can be negated by kiting. Attack, move, attack, move...
Just thought I'd share for all the protoss users out there ;D
I'm pretty sure the cooldown is the same no matter what. I just left a sentry on one of my own units and the shield flickered at the exact same interval as stop-attack-stop-attack pattern did. The attack was slightly delayed after stopping and restarting it.
You do not get a faster attack for doing sentry micro but you do get to move between attacks and thus against melee units get more attacks off before getting hit.
Sentry Micro (http://www.youtube.com/watch?v=hSobSyjj6qU#ws)
Actually, that video is exactly what I did. I compared the damage done by kiting and not kiting and it seemed like kiting definitely did more. Will double check