If anyone doesn't think a cat can tack pretty fast- try an A-class in a breeze. Roll tacking has to be pretty precise, since the boat is accelerating on its new tack before the driver has thought about it. You have to think about what to grab while on the way in from the trapeze. Full speed trapped out to dang near full speed trapped out in 9 seconds? Yup, some can. I am trying to break 13 seconds. OK, lets hear some outrageous claims about tacking cats with the shifts. (Hobie 21 sailors we don't mean you).