I've just bought a 5'7 from Downthelinesurf shop on Thursday. Surfed it once in small swell and the thing is too big for me. If someone had undersized their BP I'm willing to swap. Mine is absolute as new ( I don't duck dive with my knee).
I found it was more buoyant than my old 5'6 sweet potato. I'm 5'11 and 87 Kgs.