I think we're essentially all on the same page, since we all want our groups to be doing the most damage possible. I'll edit the Bloodletter portion of the guide to advise using your best judgment in particular situations (not Bloodlettering when a mob is about to die, not overwriting Bloodletter that's about to proc, staggering rotations if you have only two or three archers).
(In the past, Bloodletter has never had an actual DoT effect, only a damage proc at the end of the debuff's duration)