It's firmware. You can save them all and use any one you like. No reason to go backwards though.
Wow, pretty good review indeed.  I like the footprint. I have a Decware ZP3 on the build list 6-8 weeks it should be done. LOL I'm not suffering through. 23 weeks sense I ordered and paid for it.. 24-36 week wait..

Regards
I pulled the trigger on one.. It was 450.00 Serial # 18. The first batch.

I think it will be a nice addition.. Can always trade in or up..

Interesting story on the Puffin.. I like success stories..:-)

Thanks guys..