Our stickers are made using templates. This is cutting out all the plastic parts of the technique that will be covered by stickers. The plastic is volumetric and the stickers are flat. It is impossible to perfectly account for the shape of a flat piece that is intended to be applied to fluffy plastic. This creates a number of difficulties during pasting. Some parts need to be stretched in place or trimmed for best coverage.
Also there is a problem in stamping plastic parts at the factories of technique. It does not allow all parts to be produced 100% the same. Temperature, curls during transport and even pressure can affect the shape of plastic parts. And the change in the shape of the volumetric part significantly affects the final coating with flat stickers.
We are constantly improving the templates and even use a 3D scanner to create them with a minimum error of 0.1 mm per 1 meter. Nevertheless, some elements have inaccuracies in size. More often this is characteristic of kits for techniques that are over 6 years old, since it is less common. We often do not have the opportunity to improve the templates due to the fact that for their creation and adjustment we need physical access to the technique and several fittings of parts.