What helped me is having a good read of the flight manuals and an understanding of the systems (or lack of in some cases) and differences between models ect ect, helped me in the interview stage by showing interest. Few solid differences in the C210 between common models,and similar for the C206. If you can spot the differences it sure isn't going to hurt your chances. As for time on type, I sure couldn't fly a C210 after 4hrs as a 200hr pilot, not to any sort of reasonable standard anyway.