If getting a paddle with pastes don't use the same pads for knives as razors. Razor quality pastes are more like polishes and aren't really going to be much use on knives unless you have sharpened them beyond what would be considered normal. Razor pastes ate usually around 30k. For a knife 6k would be more than most would use. Once you can strop properly though razor quality paste can keep your razor shaving for a good while.