i glued my frame together and i put a film of grease (vaseline)in the female parts, put epoxy paste on the male parts then reassembled. good thing i used the grease, i recently holed the starboard hull (ouch!) and had to replace it. the epoxy 'shims' came out almost intact, they varied in thickness between 1/8 and 1/16". no wonder there was so much movement in the hulls before i glued them, thats a lot of slop.