That is not correct. You do not have to use the DA bits at all. All the components to make regular bikes, a regular attackbike and a normal landspeeder are included in the set. All the DA/RW specific bits like the wings, the angels, winged sword emblems and robed bodies are included on seperate DA upgrade sprues leaving you with the choice to either use them or not. You can make all the bikes, the attack bike and the speeder without having to use a single DA thing.