Doesnt he have his at something silly like 2lb10/11?
Warners original kabooms were 2.10 ish.
But It was noted in an interview he believed these bigger ones were that light, but someone weighed one and it was a few oz heavier than he'd realised. But the pick up was so good he never noticed in matches.
Kawajha(who borrowed one of Warners bats, which he broke) said in a bbl interview regarding the large bats, that he'd hit the gym as he really wanted to use one of these monsters. He then flexed a video and said "guns mean runs"
Back to Warner, as Katanga, Lynn and Santa have the big ones, but his do look noticeable smalle, maybe when he realised they was heavier it had a placebo and he no longer liked them so had a redesign to bring the weight back down??