The rotation you were looking for, which Evilbownr explained- Plasma arrow + compression + static field- is the oldest and clunkiest of the old school cc. I don't like it just because it takes forEVer to cast, and some idjit always damages the mob and breaks the root anyway. Lightning is better. Yes, it has a CD, but- it doesn't break. Have the scouts use lasso, or the tank use Holy Chains. Does the same thing and takes less than three seconds to cast.
My favorite is the classic HoS chainstun: Discharge, purg, purg, purg, purg, next mage Discharge, purg, purg, purg, purg, next mage Discharge etc. If you have three mages, you can keep this up almost indefinitely.
Useful Macro:
/cast Discharge
/wait 2
/say 3
/wait 1
/say 2
/wait 1
/say 1
/wait 1
/say NEXT! (or the name of the next mage in the stun rotation)
Paz's old school T-storm kiting is beyond pro also. Also from the HoS days. Picture a HoS pat. He grabs the pat with Tstorm and Lightning's the healer. Then he runs around in a smallish circle tstorming them periodically over his shoulder. Silence on the healer, lightning again as soon as it's off cd. It's a thing of beauty to watch, even though it's not really useful anymore.
As far as mage CC goes, more mages in party = better CC. Have them lightning and silence the trash, that takes some stress off the tank. If a few escape, have 'em chain their Discharges. Or, go all out and use the chainstun. We use it in GCH and ToSH, still.
lasso or holy chains doesnt stop them from casting, i remember this doin just that...thats why its very usefull in instances, i want to implement this in tosh too (depending on mobs)
if the group is smart, there should be a kill order #...example...mage 1 cc's mob #2, rogue 1 cc's mob # 3, scout 1 cc's mob # 4...mob # 2 is a mage or scout mob which still shoots while rooted (with lasso or chains, etc) but numbing dagger, freeze, and mage cc doesnt let them cast skill...
thats the purpose behind it, idk if skills have changed since along time ago, i guess thats why im asking now.