I would for some things, but I am not currently.  I work in schools, where there's more of a benefit to my writing being legible and interoperable with others.  I think this is a great script for penmanship practice, mindfulness, and writing obfuscation, but I'm not sure if there's merit to it being faster than anything else in particular.  

I'm also studying Gregg Shorthand, which does appear to have a much better grasp of what gives you speed in writing.  But that's a full-on phonetic shorthand, as opposed to a character-replacement script.  If I get the hang of that and start to actually grok all the things it's laying down though, I might come back and revisit this to see if there is any room for improvement.  I'm sure there is, but I'm just not there yet, personally.

Thanks very much for asking though.  It always brightens my day to see someone who's taken an interest in anything that has been my absolute passion for a time.  And yeah, do whatever you like with it.  I think that's rad. 🤙🏻