Well, right now Im changing my gear constantly to test different options so Im not sure what you saw from the link on my sig. But here's my finding-
Since everybody I put my mouseover IN the battleground is labeled as level 24, then I guess Im fighting only 24s. From that point on I need to cap myself so that when I mouseover the hit attribute in my char page while in the bg it has to say- level 20,21,22,23/skull 0.0% chance to miss.
Im a bit confused why it says 23/skull because 24s are not ??skull, does that mean one can actually never be capped truly for 24s? But here for my tests Im using the theory that if im capped for 23/skull, then Im capped for 24s aswell. OK then. When Im in the BG I equip eyepatch, boa bow and ring of precision- and then that shows hit rating of 19 (7.72%) and everything goes to 0.0%. Good. If I lower it to 18, switching some items, then everything is at 0.0% but 23/skull which is at 0,29% which I dont like. The number might be low but in practise ooooh maaan it means you ll miss once every ten shots. Still wearing the same gear outside the BG, because of scaling and what not my hit rating is lowered by one and now I have 18. But now im at 0.0% on all levels. That is fine but if im fighting outside I only need 14 rating to be hit capped. So now I can put my favorite naga piercer instead of the boa bow and that would be better for me (will have to also switch some rings). I also tried putting 20 and more hit rating while in the bg but all you need is 19. At least for my case as a hunter more than 19 = more unnecessary sacrifices be it agi crit or stam.
Fighting outside the BG is different. Then you only need 14 rating to have 0.0% miss chance against 20,21,22,23/skull.
Let's talk a little about foreman's gloves. Intentionally I am not including expertise outside the equation. Expertise makes you miss less but only auto attack shots and only if the opponent is to DODGE you. While the hit rating thing is against missing attacks/abillities because of another reasons. So I put expertise and hit separately.
Let's say I have enough hit so that eveyrthing shows 0.0% chance to miss but I still miss (this will only be auto attack) my opponent. Well, here comes expertise. If I put foreman's gloves there will still be a chance for that to happen but it will be lowered. And if I (that is yet to be proved) put enough cobrahan's items from the set and obtain the expertise bonus from it, then my auto shots will not miss at all. Well that sounds nice but for that to happen more sacrifices are coming in tems of stats and crit. I'd say it's not worth it cuz it will only enhance white dmg while losing crit will make all my other abilities suffer dmg.
edit: i might probably wrote a lot of crap :S