You can do the byteswapping in software, my OLS tool already does this automatically.
Of course, I know.
But I've gotten used to work with tunerpro direct emulation and this cable took less than 30min to fix. Since 2013 I have had the Moates psop44 header extended with ribboncables soldered in one single daily drive ecu to be able to fit it with cover closed. It was really ugly.
Sure, Mark Mansur the author of Tunerpro should be able to quite easily add a toggle setting for HiLo<->LoHi in his connector for Roadrunner.
I really should send him an email with a feature req.