I usually use a 10 or 15 blade for the bodies on my minis and never a 30. A lot depends on the color of the minis, how close you are to the show (if showing), the time of year, and your own preference. I do not like the "pink" look on a pinto that is clipped real close and you can see the skin under the white. Also the ones with pink skin can can get really sunburned that way. I like to clip several days before a show so some of the color returns, but again, that depends on the color of the mini. Some colors - like gray - look great right after clipping, but I like reds better after a few days. If all I want to do is get hair off, I will use an 8 1/2 blade, but a 7 (which I don't have) would probably work just as well. I have even been known to NOT have the clippers flat to the skin when clipping a foal and all I wanted was to get some hair off and didn't want to blanket them. I don't recommend that, but if comfort is your only goal, it can work. Now, if you are patient, you might not need to clip at all, as most minis will shed out eventually, getting hair all over the place in the meantime!!