New to the boards, but have been following this for awhile (fwiw I own all versions of the Yamato YF-21s, including the 2x 1/72 versions and the 1/60). This has been touched on before, but I just wanted throw my hat in the ring; from what I can gather, the ONLY reason for the massive "platform" separating the backpack is to allow for the wings to fold in at an angle (i.e., 15 degrees or so). If the wings could fold flat, then the backpack could be brought in closer very easily, by simply moving the hinge points for the "platform" higher up along the backpack and the corresponding point on the forward fuselage. This is all completely ridiculous as there appears to be no reason why the wings can't be adjusted to fold flat (similar to the platform, one can simply adjust the hinge locations). I'm flabbergasted by this design.
Also, I can't recall if this was brought up earlier in the discussion, but why not just adjust the 1/60 Yamato design so that larger ankles can fit into hollowed-out engine nacelles?? This would provide the best of both worlds: the beautifully slim fighter profile of the 1/60 Yammy, and the large ankles of the current version. I see no reason why they can't use all that extra space in the nacelles just staring the designers in the face. And yes that would mean delimiter mode would be impacted, as the hollowed out nacelles would be visible in that mode, however you could just have a sliding mechanism to cover it up, or alternatively, folding panels similar to those for the landing gear, except they would fold into the nacelle space when the ankles were slotted in, and fold closed when in delimiter mode. Anyway just my two cents. Enjoying the conversation (and I do have it on preorder... just in case I'm surprised by how it looks in person)