so the next few pics are all part of that 'squaring up'...
step one was to set the hulls up square and with the centreboards perpendicular and just as importantly so thet the centreboards centres measured both parallel and square...
That done, step 2 was to add glass filler to the beam slots and then carefully lay the beams into the slots.... the beams had grey tape stuck over them, this allowed me to remove the beams once the filler had cured
Next step was to remove the beams and pray like hell it worked
and it did
this is the rear beam slot on the stb hull and shows the outer bolt hole.....
yep that's 3mm of filler in there
remember this fact, I'll get back to it later