Emacs on OS X Font Config

I have been using Emacs font as following configuration.

(when window-system
  (global-set-key [ns-drag-file] 'ns-find-file)
  (defvar fixed-width-use-QuickDraw-for-ascii t)
  (create-fontset-from-ascii-font "Inconsolata:slant=normal" nil "myfavoritefontset")
  (set-fontset-font "fontset-myfavoritefontset"
		    'japanese-jisx0208 ;'unicode
		    (font-spec :family "Osaka" :size 12)
		    nil
		    'append)
  (add-to-list 'default-frame-alist '(font . "fontset-myfavoritefontset")))

But recently, I become feeling that font size 12 is small. So I tried to change font size.
I discovered Emacsのフォント設定を変えてみた - すぎゃーんメモ and change my config like below.

(when window-system
  (global-set-key [ns-drag-file] 'ns-find-file)
  (defvar fixed-width-use-QuickDraw-for-ascii t)
  (create-fontset-from-ascii-font "-apple-Inconsolata-medium-normal-normal-*-16-*-*-*-m-0-iso10646-1" nil "myfavoritefontset")
  (set-fontset-font "fontset-myfavoritefontset"
		    'japanese-jisx0208 ;'unicode
		    (font-spec :family "Osaka" :size 16)
		    nil
		    'append)
  (add-to-list 'default-frame-alist '(font . "fontset-myfavoritefontset")))

Font size 16 is right size for me!