This would have been better posted in SQSA. Or better yet, you could have searched for the answer. I'm moving it to SQSA but please investigate more thoroughly next time.
I have a question concerning the current tier's 2pc set bonus and Living Bomb. Is there any information on whether you should recast Living Bomb with certain stacks? I am particularly interested in how this plays in with recasting on procs with the Will of Unbinding trinket, and similar procs such as the Insignia and Lightweave.