AQ40 sure is fun time with most trash and some bosses requiring more than 2 tanks.OffTanked Skeram, trashes, tanked Kri, OT sarturas add, fankriss adds,went dispel machine on viscidus (10k mana 0NR gear easy) went on hunter on huhuran but with some NR gear could be melee easily.
And...... got rekt by Twins when panic tanking them (tanking was fine on adds)
So with some dedication on gear, bear tanking is really doable, easy (spamm maul/swipe/fairie -_-) and fun to do (feral charge can saves some days)