I use Oster and I really like them. The pop out blades are really easy to change. One thing to keep in mind, nothing dulls a blade like clipping a dusty/dirty horse! I usually have a few extra blades just in case. Linda
For the first clip of the year - at least a month before the show - I thoroughly wash the horse, spray on Show Sheen, let dry.
And then for the first clip - I use my big old Oster Sunbeam (we call them "cow clippers") -- nice wide blade for just wacking off all that winter wool and actually if you know what you are doing, does a respectable job of body clipping.
But for show clipping, I prefer the Double K. Again, I wash and Show Sheen before clipping. Saves a lot of wear and tear on those blades. And I keep a big supply of Blade Wash on hand, even though I've washed the horse. Keeps those blades lasting a LONG time between sharpenings.
Whether the first clipping of the year, or the one before Nationals, my husband will do as much as possible with his Oster sunbeam clippers--about a 3" wide blade and a #10 cut. I (and him when he finishes what he is doing) will then use my Andis A-5s. We have 4 of these and switch them off as they get warm. We can usually get 4 horses from start to show-ring ready in about 5 hours using this method. That doesn't count time to wash them ect. that is just from start clipping time. We have considered the double-k's, but since we both clip at the same time most of the time, we would need two sets and the cost is a little more than we can afford since we had most of what we have now before we even knew what double-k's were.