Thanks, Alan. Point noted. Actually, by lifting the back end with full flaps, so to speak, the ride is so much better that this might be the way to go rather than adding ballast. The boat is pretty heavy as it always was and, as you suggest, more weight might over-egg the cake.
Nonetheless I may try out a couple of big plastic cans of water just to see if it has any effect on the ride. On the way back from Cardiff back in March last year we had the bow stuffed with half a dozen of those big cans filled with fuel to try and make it back in one hit. We were burning 2.5L per mile then. It was, as you might remember, kinda ruff at the time. One of the cans gave up the ghost and we arrived in St Mawes with a thin trickle of diesel still running from the self bailers in the transom.
Still, with all that oil on troubled waters, it would have been a nice ride for a wake boarder. You want to give that idea of mine a try some time, Mr Voovar.
PS Should be around these parts early Aug. I'll keep an eye open for you. Cheers.