[SiF]

This is how I prefer to do it ...works well for me

Hotkeys:
1 - Entire Army
2 - Stalker
3 - Spell Casters

Game Options:
Health Bars on

In battle:
IF vs. melee units - single stalker micro (left click damaged stalker, B, left click right behind other friendly unit shift + A, left click enemy unit

IF vs. ranged units - single stalker micro as above

IF vs ranged + melee - boxed micro - as above but select 2/3 at a time to get them away from melee

IF vs mass ling - hotkey "2" (select all) - blink to an area that is a choke or against a wall to minimise ball surface area - when blink cools down revert to single stalker micro