Panel liner applied today.
...Not an easy sitting; a really boring one in fact!
The problem was that the interpanel lines of the wings aren't deep enough to keep the panel liner on it. When you remove the excess of product, you systematically remove ALL the product (just on wings, no problem for the rest of the kit).
I tried six times... And finally the only solution was to use the first technique I've ever used for the panel lines: black aequous pencil; surplus being removed with an eraser.
Result is good enough...