it is the first thing that came to my mind when I read the job guide haha. in the course of an 8man fight maintaining a beast gauge of over 50 could be a significant DPS increase compared to draining yourself of stacks every time. the only instance I'm guesstimating a good window wouod be to drain your gauge is when inner release is up for 4 fell cleaves and bringing yourself back up to 50 with infuriate. or burning all 6 fell cleaves if there is a tight DPS window your team absolutely must reach. but again all theorycradt without a test parse