All measurements done on TAMIYAs 1/48 model that is most accurate model. No need any specific resins for fit decals just by any model you want and extra cft parachute tail bay for the block 52. The way decals are designed fit in most models with eligible deference's in scale. As extra we give (1/72 and 1/48 scale) the inside and outside exhaust petals and also the most information's about the details for a correct Greek F-16 (such the external front plates and details for ACESS II) AND COMPLETE stencils .