I don't know about Metaguide but I used to find it useful to take 5 or 10 second exposures in PHD with my guide camera and its wider FOV.
Now I use AstroTortilla to plate solve and I've never looked back.
Even if you're not controlling your mount through your computer I would recommend getting AstroTortilla set up and then take a quick highish ISO image and solve it. Then find that location in Stellarium, or whatever planetarium you use, and you should be able to see how far off you are.
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