Write TRS-80 Super Utility image to diskette?

On Steve's SU4 copying saga, it sounds like Steve had the copy-protected, self-booting SU4, while Terry has a non-copy-protected one. Both existed. I have the non-copy-protected version available for download on http://tim-mann.org/misosys.html#down, as a /cmd file that you would have to import onto a TRSDOS or LDOS 6 disk, say with an emulator utility. Once you import it, this is the easiest version of SU4 to deal with. I also have a copy of a preliminary version of the self-booting SU4 (from Kim Watt's personal collection). I've never seen the final released version. My notes say that I successfully copied this version to DMK (using a Catweasel and cw2dmk) and it worked in xtrs. My notes also say that it was not representable as JV3. So a copy-protected SU4 that works as a jv3 but can't be copied to dmk by jv2dmk sounds like a really odd duck. I would be interested in a copy of that jv3 to see what it is and why jv2dmk doesn't work on it -- would also like to know where it came from. --Tim