i think it depends on what u wanna do. do u just want a silver BP as a pet? if so, just buy one. or do u wanna breed? Axanthics will always be gray/silver (tho some will brown a little) and Cinny with Pastels together in the right combo will be silver/gray. u need to find out which combos u like best. also keep in mind that Axanthics are a recessive gene so u will always need a pair (visual, het or a combination of both) to make a visual silver/gray.