The mouthpiece is unusually wide, making most other mouthpieces
unusable, so it is wise to carry a spare. Any regulator mouthpiece
has a huge influence on the comfort of a dive, especially when doing
long and repetitive diving. One of the test team made several dives
a day in the Red Sea, with durations of up to two and a half hours.
In Gibraltar, two to three dives of up to an hour were more common.
Andrew Bell, one of the team, noted that the mouthpiece was ‘a
bit on the big side’, while another member, Jeff Logan, swapped
the mouthpiece for a smaller one that he found more comfortable
(not a Poseidon).
Score: 65 per cent.
Along with second-stage weight and mouthpiece design and size,
the delivery hose can also be a cause of discomfort. A rigid hose
can force the second stage into an uncomfortable position and make
the diver use his jaw muscles to counteract it. Along with causing
jaw strain, the mouthpiece riding up can disturb the lower edge
of the mask skirt, causing leakage. The Cyklon proved to be very
comfortable with a supple 70cm hose. ‘Plenty of head movement’
Score: 75 per cent.
Though sharing a primary second stage is going out of fashion,
we asked testers to give it a try. Again, a short hose can make
this difficult but the Cyklon scored well. The octopus hose length
Score: 85 per cent.
The location of the side purge button makes the Cyklon easy to
control, even when wearing thick gloves. The body of the valve is
easy to grasp securely while leaving the purge easily accessible
to either diver. In normal use, all the team found the Cyklon very
easy to clear by either purging or exhaling.
Score: 85 per cent.
Three of the team were taking photographs using housed cameras,
where getting your eye close to the view finder is the name of the
game. Bulky second stages can interfere, making view finding difficult.
The side exhaust was also appreciated.
Score: 72 per cent.
Our team inadvertently hit a very strong current that churned the
Gibraltar sea-bed to mud at about 25m. For 15 minutes Jeff Logan
and Andrew Bell fought this current, sometimes finning along the
sand, sometimes inching hand over hand along old communication cables.
This dive placed enormous strain upon the divers and of course upon
the Cyklons they were using. Though the Poseidons were used at depths
of about 45m on other occasions, this ‘forced march’,
as it was described by one person, really tested the valves.
Score for ease of breathing to 40m:
75 per cent.
• The regulator is supplied with bag, clamp adaptor and Allen
key, and retails for £305 (£445 with an octopus). Contact
UWI Circle on 01420 544422.
Meet the team
An experienced diver who has worked as a film-maker in various
locations around the world. He has written for Dive International
on his encounters with the rarely seen and little understood six
Has clocked up nearly 150 dives since learning to dive in 1996.
He and wife Alexandra have dived in the UK, Gozo, Red Sea and Indian
Ocean. Joining our Coral Queen test team in 1997 as relative neophytes,
they have gone on to become regular testers and hard divers with
deep, cavern and decompression diving under their belts.
An underwater photographer whose work has been featured in Dive
International’s Up and Coming pages. In 1998 he spent a week
aboard the Coral Queen during a private charter for photographers
organised around the filming needs of cameraman Peter Scoones.
Has organised Dive International’s equipment tests for the
past three years and has been a regular contributor to the magazine.
Is a BSAC and PADI instructor and used to be training officer of
the Gibraltar Sub-Aqua Club.