The Unicorns are balanced single stage regulator. The
Unicorn II has high pressure ports and an SPG
attached. They also have easily adjustable venturi
All of the Unicorns have a very strong venturi
flow. Luis had to adjust them down or they become
positive pressure breather and air is wasted during
Due to the very strong venturi, during initial
bench testing, Luis has always had to use modified
hose system that easily vented any excess pressure.
Since Unicorns are using a balanced valve, they are
not affected by any tank pressure. They perform the
same with a 3000 psi tank as they do with an almost
Luis has the first Unicorn I around 2010 and he has
tried it just past 100 ft deep. It performs the same
at all the depth he has tried it. In 2011 he dove
Unicorn II. One performed great to around 82 ft.
The Pegasus is a modified Voit Titan (similar to
the Voit Trieste), but with a modified second stage
and using Robís plastic cans.
The second stages use a body that Creed made. Luis
modified them slightly to adjust the venturi flow.
They have a very good, but predictable, venturi
The Pegasus have different levers: a slightly
higher mechanical advantage and a roller contacting
the diaphragm. They are outstanding in breathing
performance. Luis has adjusted the cracking effort to
less than 0.5 inWC and the venturi assist immediately
drops it well below that (slight positive pressure is
not uncommon, but very predictable).