Jezza you mentionerd your A frame being loose, is it bolted all the way down through the hull? My 535 had an original frame fitted that went through the deck and the hull, if so could you remove the frame to drain the water?
Kernow. yep it was this is there I think it all got in.
The A frame was bolted all the way through.
but the bolts are through the flat parts of the rear chines. and not at the bottom of the v.
so the water wont fully drain. i managed to get it all out with a tube and a vax .