I have a prototype of SF2 for sale. It's alot like SF1 I guess. Sell it cheap as since yesterday the O2 sensors monitoring is not working anymore.
I would take off the Shearwater controller and leave the unit for 1500 €. Would be perfect to convert back into a Pscr, or Mccr or what ever you have in mind. Also sidemount. PM if interested.
Greets,
P.