 Contrary to Dragon's claims of completely effortless assembly, cleaning the links up is still required, since each link has knock-out pin marks left behind from the molding process.Injection molding limitations also mean that tracks are not as detailed as traditional link tracks, for example missing the tiny holes in the guide horns of Tiger I.A few of Dragon's newer kits, such as its Sherman M4A2 kit, include one-piece tracks made from 'Dragon Styrene 100' (DS), a plastic developed by Dragon's own Research and Development team.