On the T we have no problem tacking in waves despite not haveing the jib to help us out (self tacker).

As mentioned above.... Go in with pace, time your tack with the waves and most important, roll tack. I will stay on the wire until just after head to wind and am right at the transom. The crew will come of the wire about 1/4 way through the tack and will be on the new side hooking up before I am under the boom.