[DrGerryD]

Thanks paperairforce - it is always nice for a backroom boy to get a pat on the back from people who knownwhat they are talking about. :D

Update. The aft midships module is complete and connected to the stern module both by glue AND staples. The structure is indeed extremely strong for its weight as you will see from one of the enclosed photos where I test its longitudinal strength with 5lbs of canned vegetables. At this point the hull weighs only 85g. There is not enough room yet to load the hull transverse but arm pressure from this weakling could not provoke any sign of deformation.