To the OP: Curious - How many times have you been past the sign by as much as a fun kick or more?
At a certain point you have to acknowledge cave diving is a separate sport and you're essentially going to a specialty store which uniquely supports it. By asserting you're a DM I'll assume you've had say one professional level course, and possibly no technical training. One key difference in recreational training and technical training is the "assumed pass" like you get with recreational courses goes out the window. Exactly how many PADI courses did you actually fail?
As a moment of perspective, the technical/cave diver must assume a modern day apprenticeship to succeed and the mindset is somewhat exclusionary versus inclusive. I can imagine many dive shops in cave country worry they are arming you by filling your AL80s. As a DM and someone in a leadership role you almost owe it to your students to get a full compliment of training which meets the demands of the environment for which you work. Say a student ignores you and goes down the tunnel, what do you do? Your third is coming fast at 2000psi on the gauge as we're talking 1/3 of 77 cubic feet is what you have to work with.
Regardless of your training level or capabilities, I think you'd do well to reevaluate your tanks and think about how you can better support yourself and those that are in your care. As demonstrated the AL80 is likely an insufficient tank when guiding others in the cavern/cave environment.
My recommendation: Take Intro to Cave or equivalent and then up your DM fees, you'll be worth it.
PS: I'm looking to hire a DM in Cave Country (April 2013) for gear support and general topside assistance for a weekend. If you aren't cave diving by then drop me a PM for details.
At a certain point you have to acknowledge cave diving is a separate sport and you're essentially going to a specialty store which uniquely supports it. By asserting you're a DM I'll assume you've had say one professional level course, and possibly no technical training. One key difference in recreational training and technical training is the "assumed pass" like you get with recreational courses goes out the window. Exactly how many PADI courses did you actually fail?
As a moment of perspective, the technical/cave diver must assume a modern day apprenticeship to succeed and the mindset is somewhat exclusionary versus inclusive. I can imagine many dive shops in cave country worry they are arming you by filling your AL80s. As a DM and someone in a leadership role you almost owe it to your students to get a full compliment of training which meets the demands of the environment for which you work. Say a student ignores you and goes down the tunnel, what do you do? Your third is coming fast at 2000psi on the gauge as we're talking 1/3 of 77 cubic feet is what you have to work with.
Regardless of your training level or capabilities, I think you'd do well to reevaluate your tanks and think about how you can better support yourself and those that are in your care. As demonstrated the AL80 is likely an insufficient tank when guiding others in the cavern/cave environment.
My recommendation: Take Intro to Cave or equivalent and then up your DM fees, you'll be worth it.
PS: I'm looking to hire a DM in Cave Country (April 2013) for gear support and general topside assistance for a weekend. If you aren't cave diving by then drop me a PM for details.