Chip, this is very interesting and useful, thanks for sharing! I would like to add that this is not really working with MM11.3; not that it only has problems with e.g. "i" and "j", the scaling itself does not work. Now that I have updated to MM12 everything is fine. It is nice to know that now there is a fast and easy solution to the packing problem, e.g.:

This reminds me to an old post of mine where I exactly had that problem.
Best regards -- Henrik