Thanks gentlemen for all the replies. I didn't post my issue to scare somebody away from doing their 357. As stated, I may or may not have cut the rim deeper, but the eyes are not what they used to be after cataract surgery. If you go slow and use a magnifier you'll be ok.
I have thought of the idea of machining a shim, but I don't have access to a lathe at this point.
Thanks again,
Bobby