I tried to politely warn someone on AL regs on (ahem) Reddit and was downvoted to hell.That's why I stopped buying Aqualung (or its sister companies kit) back in the 1990. they stop supplying parts 3 years after taking a product off the market.
I have the same "will not buy" status for anything Mares after they killed Dacor and made one of my nicer breathing regs "unserviceable"