The CEO of Dive Rite, Lamar Hires, has blogged on the topic of O2ptima checklists: Dive Rite - Dive Rite’s online journal exploring the latest in technical diving » Importance of Following a Rebreather Checklist

Dive Rite is publishing two O2ptima specific checklists I provide my students, I've released them to public domain and they are now posted in the Dive Rite library: http://www.diverite.com/downloads/diverite_100.pdf

-- Mark