Sabotloader,
I've used the mag version, but also the standards with never an issue. I hunt SW Washington. Most hunts are in the 40's and wet, with some in the 30's with wet snow.
I've tried most all of it over the years, RWS, CCI, musket, #11, #11mag. Honestly it all worked except the bad tin of the RWS stuff.
Muskets are a bit easier to handle and get on and off the nipple, but the cap holders are much bulkier, and its harder to find a quality made one. Plus they tend to get crushed up in the dispenser in the heat of battle or if the spring catch piece is too stiff. The wing dings just dont make them very friendly to inline dispensers.
I've had the charge fall out of musket caps. Never had that with a #11 yet. But I check them all. Green in a RWS and Salmon colored in a CCI.
#11's have nice little dispensers, they also fit 1 each sealed in a TC spead loader for backup. I say backup cause the one in the cap is harder to put on the nipple than one from a dispenser. They dont crush up in the dispensers.
I've done testing and the gains in velocity between a musket cap and a #11 were minimal. Somewhat less than 100 FPS as I remember.
I carry my dispenser around my neck or tied on my belt and in my pocket and the musket caps didnt handle the sweat and moisture as well as the #11's do.
I change out my caps after every days hunt and put them in a tin marked with a "P" for practice. Each day starts with fresh caps. From then using the practice tin on the range over the years I've found that the #11's survive almost everything I put them through, while the musket caps didnt fare so well. It makes for an interesting data point, though not very scientific or controlled.