For #10's through 11's, we like a round, leather capper, holding from 20 to 30 caps around it's perifery - perhaps Taylor has a picture, if not, I'll take one. The 'round' of leather has a backing on it to support the cap whilst it's being put on the nipple - then, there is a small slit running out to the outside so the capper is merley pulled away from the nipple, not upwards to release the cap. It is much simpler than using a brass capper. I have the brass 'strip' capper as well as a couple of the revolver cappers and the leather capper is much handier and faster in use. It is only one of the features of my shooting, that allowed an 8 second reload with an aimed shot & hit at 50 yards to stop the clock.
I also made a few for use with the musket caps - a real boon to shooting most any caplock, except for a revolving handgun. There, a brass capper is about necessary unless you use tweezers or needlenose plyers.
I have found the Remington caps leave much to be desired in quality, due to the priming disk falling out of them- perhaps 3 to 8 in 100caps. At 8 cents each (around here), that's too much.