Don't just take my word on it but I believe if you are only doing a +1 you don't have to remove the dimples. The follower and base of the shell will not go that far down the tube.
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So... got the Mesa 4-shell sidesaddle on the gun and the Magpul rear sling doohicky and I had a spare MS-2 sling I picked up on sale someplace.
I can't wait to get to the range. I think I'll wait 'til I get all these stitches out of my face first, though...