I just found this forum and as I'm a 'hatchette' Bismark builder thought I'd register and post :)
I've just spent hours reading this forum, thanks (fellow) Martin for the great informative pictures, its nice to see other peoples work too.
I'm up to issue 50, I guess like most UK subscribers. I'm in the process of fitting those strange front and rear port hole ply strips and sanding down the hull to suit.
A good tip in making the hull wonderfully smooth, once you've filled any gaps with filler (I used curpinol in a tube filler as its water based), after sanding smooth, mix some filler with a little water to reduce it and paint it over any imperfections with a brush. Sand and paint again. You get a great result. I'll post some pictures of mine soon.
All the best.