SF2 Rebreather Demo I finally got the chance to do a nice demo on the ScubaForce SF2 rebreather with Alex Dulavitz of East Coast Divers. My friend Luigi was also doing a demo on the unit as well. Additionally, Aleksey joined us for a swim around on the pond on his Prism 2. I will admit I have been intrigued by the unit for quite a while. A backmounted counterlung unit providing good flood tolerance with a clean profile, simple setup, and good engineering. At least on initial appearance these…