I am working on a type family and having trouble importing metrics from one weight into another. I currently have a regular weight with horrible spacing and a properly spaced bold weight. What I want to do is apply the sidebearings of the bold weight to the regular weight, narrow them all a little, and then manually tweak everything. When I import the metrics of the bold weight, the sidebearings end up where they would be in the bold weight, so I’m stretching my advance width way out to the right.

I can work around this by just copy/pasting the sidebearings. Is that the best way to do this, or is there a way to import the metrics relative to the outlines as opposed to just setting the sidebearings to their actual locations in the bold weight?