Exactly. I have stopped doing a preboil gravity and usually only do a post boil to verify. I'm always spot on so I'm assuming this one was also. I usually test before I pitch bu alot going on yesterday. I pitched on a cake and fermenting commenced quite quickly so I'm not surprised I lost .01 points overnight considering my sample was fermenting even warmer. As far as RDWHAHB I think that may have had something to do with it