I have been doing my Megalodon Rebreather course now for 2 days in this time we have covered all the basics of setting up the unit, basic priciples, learn't the skills needed to dive it and completed 3 dives to a maximum depth of 30m.
After this time I can say that all my thoughts are positive, it is easy to set up, easy to dive, it fits really comfortably on your back and the trim is spot on. Even with the front mounted counter lungs you don't feel cluttered at all and there is room to lift your head to look ahead when swimming in the horizontal position.
I have been diving on the COPIS version which is a MCCR (Manual Closed Circuit Rebreather) this has a constant flow of Oxygen fed into the loop but you have to manually add Oxygen via the manual addition button on the inhalation counter lung to maintain the Oxygen Partial Pressure, this is easy enough but your finger is non stop to maintain the PO2 from 10m on the ascent. I will be diving the APECS version from Thursday this is an ECCR (Electrical) so the PO2 is maintained by a computer and Oxygen is injected into the loop when required via a solenoid.
I have to say I am very impressed with the Meg and will be serously considering buying one in the near future.
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