Grog...the first layer was screwed fome the inside out.  I was trying to figure out a clamping technique and just could not come up with something satisfying.  I figured with the screws I would know each contact point and be able to control the adhesion better.  It seemed to work pretty well.  
Again I have to say that I was very surprised by the lack of build quality on my boat.  I feel GW took alot of shortcuts when building...but I guess the flip side is that if it was built perfect then what would we have to work on?!