well I keep my tanking gear for trash (if instance allows chain pulling)
ie hc UP, pull first 2 groups charge into 1-2 more (entire hall basically) and burn a cd or 2
while girl is talking pull next 3 groups and use barkskin... than I put cat gear for boss (unless skipping)
yes my dps is a lot higher in cat gear but in bear gear you can pull half an instance and survive it (I do my hcs with guild... i dont pug it however)