I eventually replaced the stock bracket with this one, https://www.amazon.c.../dp/B07NB83PS2/ , and while mounting it I realized that the 90° mark was pointed North, so it makes a fairly accurate setting circle. (You have to do a little math for West.)
It has cut my target acquisition time at least in half, and as a bonus, the target doesn't shift when you tighten it.
I hope someone finds this useful.
Edited by NGC 2419, 12 October 2019 - 06:04 PM.