To be honest as a Shadow tank, my main priority is to survive not hit boss.
Ofc hitting = more threat and easier to keep boss on you, but cmon Rakata gear gives like 500-600 acuracy rating. Even without any accuracy on 90% basic hit chance i can hold threat on boss easily with proper rotation, and therefore that 500-600 accuracy could be 500-600 shield rating or defence, which would make my main priority which is to survive easier. Most of that accuracy comes from unproper enhancements in rakata/columi.
And since there are none atrifice patterns in game droping from operations, there is no valid way to replace that crapy stat except buying pvp champion gear (which have proper enhancements and stats O.o) and use those 56 enhancements in rakata gear.
And even when some columi gear like hands had proper stats (shield,absorb,defense) on rakata its changed again to accuracy and little absorb.
Well designed, i guess easier way was skip what gear it is and for what role and just place same mods for every piece of rakata.
Please can you guys fix that or add those artifice 58 enhancements, so people can finaly gear properly to their role in operations.