I don't even know. I did not know that shops are not filling OC Trimix tanks. I could not even tell you the going range for Helium right now. I just know it keeps going up. It that happens maybe I become a specialist on Deep Air diving ?
I do remember the advice you gave me about doing Helitrox instead of DP and that is my intention when I get started with the Tech training, which has now been delayed for a variety of reasons. I hope late Spring early Summer next year to get a handful of classes done and many deep dives in. I always appreciate your advice.
BTW, I need to get 1-2 sets of Faber LP 85 doubles.