What would make .3dp editing far easier is if the editor could be persuaded to represent the hex in human-friendly format, meaning normal, everyday decimal notation. This should be possible, but will require some custom scripting which I don't currently know how to write.
The editor I have will allow various display options but doesn't include the one we really need. What's needed is an option to take a selected group of bytes, bundle them up four at a time (because each four bytes represents an X, Y or Z axis co-ordinate) then run that bundle through a base converter to get the decimal value, and display that on the screen. That way you'd end up with three columns of normal numbers instead of 12 columns of hex/floats. If we can find an editor that will let us do this we'd be in like Flynn.
![thumbs_up !*th_up*!](./images/smilies/ok.gif)
It's probably possible, since most things are. It's just a matter of finding out how to do it. I'm going to do a bit more sleuthing.