Thank you for exellent mod.
Mechjeb indicates drag coeff increase after placing something in OPT K hollow fuselage 3 m.
With Scramjet form factor change, Im not sure I understand what for MK2 sockets near the tail are. For bicoupler from another mod? (stock bicoupler is not an option due to its length).
Maybe its possible to return Mk2 scramjet (nerfed to reasonable values if you think its op). Or add 1.25 version or an option to tweakscale 2,5 m version.
If there are problems with "control from here" option for cockpit shielded docking port, maybe solution is to separate existing cockpits into two parts - cockpit itself (4 piloting kerbals, 2 pilots, navigator and engeneer) and optional
passenger/service part with docking port.
Thx one more time, you addon is absolute must have for me, and sorry for my english.