I am building a Northeast Dory. I am to the point where I have completed my puzzle joints, sanded same and have now sticked the thwarts and lap strakes together. I am now checking the hull for twist. And plan to turn her over to begin the "glueing". Is it a good or bad idea to Tack weld all the thwarts and panels before turning the hull over? I am concerned that turning her over without making the hull stiff may induce some twist.
I appreciate your responses and look forward to hearing some ideas on this.
Thanks a Ton -the "old Phoneman in VA"