An excellent article, even if in metric.
I had suspicions about the TR LCM, but drove on building one anyway. Then I got some drawings & figured out the side profile was off by at least 1/2" -- then Terry's article came along & confirmed my worst fears. I figure the sides (above the hull) are 6/32" too high at the back & 7/32" too high up front. The hull itself appears to be about 1/8" too high at the bow and 1/2" at the stern. The bow ramp is of course off.
Today, I busted my partly complete LCM apart to see if I could fix it. What I am afraid of is that the hull profile is also wrong & if I take a 1/8" - 4/8" "triangular" slice from the hull, it will then sit wrong -- when the deck is level, the bottom of the hull will be slanted forward-down rather than forward-up.
And none of that addresses fixing the interior. The height is pretty easy (make it match the hull fixes), but my drawings suggest the LCM compartment is wider at the top than the bottom & the TR model is pretty vertical, with a dimension between the two real ones.
Bottom line: I'm not sure the Trumpeter hull & compartment are fixable by mere mortals like myself, but I am gonna try, at least in profile.