To countdown or not to countdown?

[Krotoan]

Years ago back when I was a fresh 60 tank I would pull everything in raids/trials(non savage/ex DF type stuff) as soon as protect went up of course this would upset some and I quickly learned that people appreciated a countdown timer to prepare their openers. The thing is, a lot of times in these raids a healer or DPS(or even another tank) will pull(and not by accident) half way through said countdown and some even complained about countdown timers being a waste of time. So in duty finder trial and 8 man and 24 man raids, whats the best practice here? To use a countdown timer or to not use one?

Ask I'd say. As a dragoon, watching my blood buff count down that counter gives me anxiety and despair. I only have 15 seconds to combo and maintain my 2 stack of eyes, please do not waste 10 seconds unless someone is OOM or OOTP... or needs some time.. that's fine but unless someone has said something just PULL!