Between your x and the fx which one do you prefer? Also I think the fx need to be connected to the o2 and your bailout for dil, compared to the Ccr who’s “fully” independentI dove an FXCCR for 4 hours. Rigged on a katana 2 with LP 50s sidemount, an AL13 for O2. I thought it breathed well. Just like the Chop. I own an XCCR and the parts such as BOV, HUD, and handset are interchangeable. Easy and fast DIL flush. Smaller than the choptima. I will ultimately buy one soon.