Duncan I accept that metaphorical wrap across the knuckles for not checking the bilges before setting off .... It was stupid I know but I had seen the hull full of rain water during its time in my yard and no water leaked so I assumed the hull was intact. I also "knew" my bilge pumps would sort any problems .... obviously assuming they didnt stop working for any reason, which is why I returned when I did. Incidentally, no water enters the hull when we are motoring, probably because the wake takes the waterline well beneath the holes??
As for your concern about "weight" ...... I honestly cannot see that I have added much weight to the boat. I removed masses of heavy wet wood and replaced it with similar dry stuff. I have not used the two massive internal fuel tanks and I would suggest that the floor and ribs weigh no more than half of one of those fuel tanks when full. I do however have a temporary 70 litre fuel tank on the deck at the moment (which was not full on the first journey).
My engine, which I believe to be 165kgs is probably half the weight of a decent diesel inboard and leg.
And finally, I would think that my boat should easily cope with 4 crew. Most of my mates are around 100kgs so that would be around 400kgs excluding gear, My modifications would have weighed less than a quarter of that as an absolute maximum, not taking into account the weight of the stuff I removed.
This is not a dig at you Duncan, it is/was my (maybe naive) thoughts during the build and welcome any other views.
It does seem from the fact that water ingresses through the draining holes that maybe she does sit a little low in the water, but I cant see that is anything to do with what I have done.