The key to playing properly in group blender / counterblender play is knowing where you fit in to the waves of CC / raid breaking. The better geared individuals (romeo / placated) will be the first wave... the 4.5-6k GS individuals will be in the fray shortly after them... the 3-4.49 gs individuals will be shortly after them. The idea is to create a situation that disables as many enemies for as long as possible without taking any casualties. Movement is honestly more important than gear but if you are going to participate in point blank AOE/CC you primary focus needs to be survival because you are not there for damage you are there to disable. If you'd like you can screenshot me your entire gear set and I can tell you exactly how to gem based on your current gear.