Unfortunately I don't have one of those and AFAIK you're the first to try so it's completely untested so far :-(

Since you have one, could you post the output of df? I'm particularly interested in how much space is available on the initfs partition.

Understood. Please don't feel under any obligation to try it, but if you decide to do so see this post for how to roll back to the official version if anything goes wrong (and make sure you have a fresh backup of course).