I am a Guardian, with some clears of HM TFB.

Current stats, with buffs and a Rakata Stim, are:
48.76% Damage Reduction,
27.09% Defense Chance
49.25% Shield Chance
50.13% Shield Absorb


I currently roll with a Dread Guard Relic of the Shrouded Crusader (Shield and Absorb Clicky) and the Matrix Cube. I have enough comms for another Dread Guard Relic. I'm thinking of getting either the Defense Clicky, or the Shield/Absorb proc.

I love having full control of my clickies to save myself in crisis situations, so another clicky might by nice. I just wanted to ask a few questions:

1. I am pretty sure they don't share a cooldown, the defense clicky and absorb clicky, but I want to make sure before I buy.

2. Since I already have so many clicky cooldowns to survive, should I grab the shielding proc relic to smooth out my damage mitigation?

Thanks for your input.