Kittyhawk7

I did this with roundels for my P40 with the tamiya markfit (strong) which sets the decal and mildly softens them. I just softened both top and bottom, with a bit more on the top. Just remember to wait for the bottom decal to dry first before you put the next decal on, so you don’t move the bottom decal.

When you say lifecolor thinner is that the 22ml one with the green sides or something different