YES!
I may not be beautiful BUT I am definitely worth it
I'm with @Geo7 and @Joneill. No desire whatsoever for a TFX as octo.
I cut the TFX hose way down, to preserve that fancy titanium swivel without having a big ole hose bowing out to the right and back to my mouth. It is now too short to even think about donating the reg in my mouth to someone else.
I have a Ti2 on a 40" hose, which runs under my right arm and to a bungee loop that holds its mouthpiece. The Ti2 is plenty good enough of a breather to give to someone else to breathe from.
I do not like having a swivel on an octo (i.e. a reg on a hose that loops under my arm and into a holder). That swivel allows the reg/hose assembly to flex and hang down more than one where the LP hose goes straight into the reg.
Thus, if I had a TFX as secondary, I would end up not keeping the swivel that comes on it. And that is a DANG expensive swivel to take off and have sitting in a parts bin. I think it's about $250 for an Atomic hose with that titanium swivel built in.
I could have a TFX on a short hose (with swivel) to a bungee necklace and then another TFX as my primary, which I would donate. But, that would mean, either, having a long hose bowed out to my right and then back to the reg in my mouth, OR putting an even longer hose on it (thus losing the expensive, titanium swivel) to run it under my arm. I don't want the long hose bowed out to my right, and I don't want to ditch the fancy expensive swivel, to replace it with a cheap 110 degree swivel or a cheap OmniSwivel clone, just to run it under my arm. The Atomic swivel does not offer enough angle to use on a hose that goes down from the mouth and under the arm.
Nope. No dual-TFX setup for me.