I have sold them to guys needing magazines.
Quality has improved greatly over the years but I am not going to tell you the magazine will drop in and work without some tweeking, then again it might.
I have had to do the same tweeking with original production High Standard magazines too.
I made this suggestion because original magazines are getting harder and harder to find and the guys who have them put a premium price on the when they make them available for sale.
The Mitchell magazines are certainly no worse than an overpriced, original, used magazine.