We have an Oster clipper and quite a large variety of blades. We periodically have our blades sharpened which helps a lot. My only complaint is that the clippers and blades heat up so quickly. We have to keep taking a "time out" until the blades cool down. We do use the Cool Blade (I think that's what it is called) Spray but the entire clipper gets hot and you just must wait a while for blades and clipper to cool down. I guess when you are grooming professionally you just grab another (cool) clipper and continue????