I went ahead and assembled the lower hull and the upper hull to see if there was a problem with gaps as a lot of people that have built the M3 have complained about. I followed the instructions and the casement went together as I expected it to without gaps.
Some have even assemble the casement without the lower hull on a flat surface with no gaps resulting from doing it that way.
My rear deck is not glued down because I need to install a part before I do.
Photos of my results by following the instructions.
More tomorrow guys and girls
PS: I used no rubber bands or clamps
You should read up on these. At the time they were pretty good against what the Germans had and sometime even better. When the Sherman hit the battlefield It was almost like jumpin out of the frying pan into the fire.