Hi mate, first of all don't panic on the cutty sark the hull and deck are built differently to the Wasa (I've built this kit before) and its my dads favorite kit he has built it 3 times(unfortunatly his eyesight is not what it was and cant see him building it again) use superglue, I think you should be ok following the instructions, but if it seems to badly warped do what I did glue the front part let that dry then gradualy glue it 2 or 3 inches at a time till you get to the stern (the advantage of superglue is you only have to hold it for ten mins or so till its set enough to progress to the next bit ) just make sure the front (the prow) is set fully (overnight ) before you start on the rest, if you do have to use this method dont try to fit the deck till the hull is set again overnight as you will have to force the top of the hull apart to fit the deck (in places) and if its not fully set you may find the hull pings apart again. I'm sure it will go as per instructions so dont worry.