Thank you. Glad to be here.
I'm using macOS 10.13.6 High Sierra on a pimped-up mid-2012 Macbook Pro. To head off the oft-asked question, "Why don't you upgrade your O.S.?" Because upgrading further will disable its dedicated NVIDIA GPU that is unsupported in later versions of the O.S. (and I'm not ready to kick my trusty companion to the curb in exchange for a newer model just yet).
I have uploaded a copy onto my Web server. A link is now available on the page I referenced above or click here for a direct download (36MB).
Interesting. I tried the Apple RAW engine instead, but saw no notable difference in how the image looked on-screen. It's possible that the laptop's integrated screen doesn't have the super-fine resolution I'd need to observe a change.
Thanks for teaching me something new. I was unaware that RAW files contained a JPG side-car.