In general I find every mfgr's decals to have slight differences. Variations depend on how long it takes in the water to release the decal from the backing, how easily it moves once on surface, how it responds to the setting solution (some decals weaken and start to stretch if you pull them along), and how well the settle along compound curves. I always start with some of the least noticable and important decals. I always scan each decal sheet in case I mess one or more and need to make inkjet copies.