| Apecs 2.5 HUD sequence The HUD sequence for Apecs 2.5 uses 3 long flashes for Po2 over 1.5. I want to know if people find that these 3 flashes of green are sufficient to alert you to high PO2 and i wonder if a different colour such as amber would give a better warning. I also worry that i or more likely an o.c buddy would mistake these 3 flashes for a PO2 of 1.1 |