The science behind the bloat is pretty solid. The fatter you are/more uncomfortable everyday life activities are for you to complete, the stronger you are in the powerlifts. A good bloat adds more pounds then a 3ply grid stitch denim bench shirt. It's science.
The whole point is to retain as much fluid as possible before training/after weigh-ins to be as heavy and as thick as possible to improve your leverages slightly. If you are already fat and awful, this is hard to do. Odds are you are in a state of constant bloat already.
I think this is a skill that I have mastered. One meet last year, I weighed in at 229... 24 hours later I competed at 250.