This is based on diver training.
One recreational agencies (PADI Rec Tech) promotes diving multiple deco gases in their first tech class.
Most technical agencies do not recommend this practice.
I personally find the teaching dangerous. However my discussion with the local PADI Rec-tech instructor has to no avail.
However Padi's tech training seems to be 20 years behind current technology.
Sorry you have to deal with the students.
Dave
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