Thank you for the responses. I'm still pretty new to posting on forums. I had gotten the armor penetration idea from this source: http://www.forcejunkies.com/2011/12/23/the-powertech-compendium/ I don't know how reliable that is, but I'm just throwing it out there. Since I'm on the topic of accuracy, I have heard that it is necessary to have 5% to hit the regular mobs, but then you need 10% for the bosses in the operations. How much accuracy do ya'll think that Powertech tanks should have? 5% or 10%?

I wanted to see everyone else's opinions on the end game gear for tanks and how they have ridiculous amounts of accuracy on them (Just like everyone else). Has anyone found that the additional accuracy(over 10%) is worth it for the added armor penetration on these bosses? Or should you just keep the columi enhancements(with shield rating, absorption or defense rating) until you get the tank enhancement drops from the bosses in the operations?