Optimum Hyper Polish and Hyper Compound, more aggressive (especially the compound) and they are spray-able! Why spray-able? Easier to prime the pad or to apply the polish directly to the paint. I believe the initial inspiration was for assembly line use (Optimum is working with a few car companies) to prevent dry buffing when using a new pad. Just got the final, labeled formulas on Saturday, based on first impressions, Hyper Polish appears to be at least #205's equal via DA. Need to try both with the rotary but don't have any corrections until Sunday.