Thanks 'Doc

I thought of that, it would be the nicest thing to do... but an extra mm makes the sides pretty thick and ... in my impatience to move on, I already glued 2 walls together. hmmm... a challenge. In the meantime I also e-mailed Model Slipway, as they normally tend to reply to such questions.

You are absolutely right about dry-fitting first, but at a given point the glue comes in anyway, and then you still notice that something is out of proportion... ;-)

Thank you for your reply! greetings