Did you look into pvp bear specs?
I did a little bit of research on prot pally pvp, I could give it a shot though I can't really change my spec (prot pvp spec is very close to the "standard" pve raiding spec). I'd have to reforge my pvp gear in favor of crit instead of mastery (not really a big deal since crit is fairly close to mastery for ret as well), as well as get the str/crit/resil shield (one week of arenas) and str/crit/resil one hander (another 2 weeks of arenas). With 4.1 we're also getting a nerf to self healing, but that applies to ret as well.
Edit: also would need to reglyph every time, but that's no big deal.
Well, Orcala dear, do you tank in your raid or straight dps? If you don't use your offspec and could spec it for pvp-flag carrying it might be useful. I'd hate to sacrifice Ascoli's dps if we didn't have to. And if Ug ever shows up (*shakes fist at Ug), we might actually have 3 healers before 9pm when krer can make it Then Zu can go back to full shadow from healing.
Yeah actually I only raid dps my tank spec is there for 5 mans but I never do it. I'll look at some feral pvpers specs.