This is something that has been bothering me for a while. Early on, before I knew the mechanics of oskills, I thought that using two CTAs would be the way to go on barbs to maximize their BO. Alas, you can only get up to +3 to any one skill from all oskill items you have equipped, not per item (which would yield +1 all skills and +3 BO, each, instead of the actual +3 BO from the two at max). Now, I don't have a CTA offline to test this out, so someone can tell me if if this is true or not... (I do online, but why would I want to play online?)
Shouldn't you still want to use one CTA on your barb's switch in addition to your standard BO stick or HOTO, because it not only comes with +3 BO, but +1 to all skills as well? Unless you really want that +2 more to shout that you would get with the extra BO stick or HOTO in place of a CTA, it seems like the way to go (though I've heard that defense isn't even worth pursuing unless you plan to have it in excess of 10k).
I never see anyone advocate this, so I'm wondering why. Does it not work like I think it does (getting +7 BO on switch)? Does +2 Shout outweigh the benefits of an additional one point to BO? Or does it really not matter one way or the other?