Wolverine R and CARM ?

I've been using the Rowen Engineering single shot loader that opens when you open the breech, I have 3, two on Huntsman's and the one on the Wolverine and haven't missed using the magizines at all, they are not cheap either but less than the mags.
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CARM fit and function great. Nice to have the bolt hold-open after the last shot as I tend to dry fire a lot when using Daystate OEM magazines.

I have the older ones, so I actually give up 2 shots in .22 cal to the new Daystate magazines - 9 shots in CARM, 11 in OEM.

But CARM now has 'high capacity' Daystate magazines, which I guess give you all 11 shots as well as hold-open after the last shot. If I was buying today I would buy those, but as yet I only have experience with the 9 round versions.