questions about DIY vertical adjustment

[yossarian123]

I have an M9 that I just received, unfortunately both horizontal and vertical needs adjusting. I tweaked horizontal last night, I have it more or less optimized (not perfect) for most of my lenses. I might give the vertical adjustment a try tonight. I have the special Zhou tool for M4p/M6, I bought it but never used it on my M4p.

If I understand it correctly (from reading stuff on the internet), the steps for adjusting vertical are:
1. remove red dot (carefully)
2. loosen the glue on the RF "screw" with a drop of acetone.
3. make adjustments with the tool, check at infinity
4. here's the part I'm not clear on - do I need to re-glue the RF screw after I'm finished? If so, what glue should be used?
5. Close up the hole with the red dot.

Does that sound about right?

[Vickko]

I'm interested in the answer. On older M's, I never re-sealed the adjustment, and never had a problem.

[yossarian123]

I went ahead and did it tonight. I did not re-glue the thingie, I'm a little worried that not re-gluing will make it more prone to be knocked out of whack.

[Vickko]

How stiff was the adjustment? If it was stiff, then, it's going to stay in place.

[yossarian123]

It was pretty stiff - I used a tiny bit of nail polish remover.