Hi
Readers might have noticed that this model has "separated" control surfaces, not present in original Thaipapework model.
They are all made in essentially the same way, which I have "invented" some time ago and illustrate below for vertical fin. These control surfaces are in fact not separate to the fixed portion of wing or fin but are glued in with a slot between fixed an movable portions. Once glued in the wing or fin is a single piece, simple to "close" while the control surface and fixed portion are well aligned and with consistent gaps.
For those interested in how I make the various effects in Photoshop- I can send you a PSD file with all the layers and settings- then almost all the "secrets" will be revealed.