I think the letter notation could use optimisation --- the cost per letter varies extensively, but the letters are assigned alphabetically, so letters near the top of the alphabet are cheaper to write than letters at the bottom --- but I like the underlying principle that it's designed for humans to write, not machines, therefore it's intended from the ground up to allow expression and choice in how you write it.
http://www.ccelian.com/ElianScriptFull.html
I think the letter notation could use optimisation --- the cost per letter varies extensively, but the letters are assigned alphabetically, so letters near the top of the alphabet are cheaper to write than letters at the bottom --- but I like the underlying principle that it's designed for humans to write, not machines, therefore it's intended from the ground up to allow expression and choice in how you write it.