Following up on my own post, I now noticed that there was a setting in my .emacs file that selected the bold weighting. Why "stock" Emacs did not respect that setting and this "Mac port" did I have no idea. Changed the default weight to normal and now both versions have identical fonts. A curious mind might want to know why the "stock" Emacs OSX build does not respect the bold weight. The specific setting from my .emacs is:

(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(default ((t (:stipple nil :inverse-video nil :box nil :strike-through nil :overline nil :underline nil :slant normal :weight normal :height 120 :width normal :family "Andale Mono")))))

Thanks,

Marius K.

On Mon, 22 Aug 2016 at 09:31 Marius Kjeldahl <marius.kjeldahl@gmail.com> wrote:
Thanks, did a quick test and seems to work fine as usual. One noticeable difference is that in your build, the fonts are weighted heavier. On my iMac5K, your version looks bold compared to the regular version. I've posted a link to screenshots below, although it's less visible in a compressed image than on my actual screen.

https://snag.gy/aiqFch.jpg

Anyways, thanks!

Marius K.

On Mon, 22 Aug 2016 at 02:38 YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> wrote:
The Mac port based on Emacs 25.1 release candidate 2 is now available from

  ftp://ftp.math.s.chiba-u.ac.jp/emacs/emacs-25.1-rc2-mac-5.91.tar.gz

and Git repository is also available at

  https://bitbucket.org/mituharu/emacs-mac.git

Get it from the "master" branch.  The "work" branch is for bare
development and not for release (candidate) versions.

                                     YAMAMOTO Mitsuharu
                                mituharu@math.s.chiba-u.ac.jp

** Improvements

*** Update emoji sequence data to version 4.0 draft.