I'm not sure if this is a correction or just an omission. Regarding model 29 Engineering and Production changes, on page 232, the last bullet point on the page describes the model 29-4. At the top of page 233 it appears that the description of the 29-4 continues but the next heading is for the 29-6. Did the 29-5 get omitted or is the description at the top of page 233 for the 29-5 and the heading was omitted? The description at the top of page 233 includes: "1990 Longer stop notch in cylinder..." "1991 Introduction of the Magna Classic". "Introduction of the .44 Classic". "1992 Introduction of the .44 Magnum Classic Deluxe."
I thought those features were associated with the 29-5.
Hope this is useful information. Looking forward to the 5th edition!

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Hand tighten only