Yeah, mistakes can be a good thing. "Critical thinking" is not a bad word and the process of modeling is fluid and all about learning to make a better you/model. The research that kit manufactures do isn't always 100 percent. There are dead lines and limited resources and money to be made. George, has some good advice enjoy "30 Seconds Over Tokyo". The movie is eye candy for a modeler. The main character is played by Van Johnson the everyday man.
"Critical thinking" should be in every modelers tool box. Nothing wrong about being creative, discovering things and making mistakes are apart of the process. Its a hobby after all.
The model is looking good Bernard (@lis).
"In any case, the Tamiya tape method didn't work (although it worked on other projects, probably this time the decals fitted really well and peeling off is a miracle." Tamiya tape is a low tack tape designed not to stick hard onto a surface and provides a mask for painting. I may have confused the issue, in the states if your painting a bed room you can buy painters tape which comes in blue or green colors and is about a inch and half wide or so many millimeters. Apply it directly to the decal after cutting down the tape. It sticks a lot better than Tamiya's tape.