Out of curiosity Alex, why not?
I’m also thinking about making an investment, 7 was one of the candidates, together with JJ, rEvo and AP.
Out of this thread I get that AP has a problem with the head, somewhere else on forum JJ is claimed to be dust sucker, I also read that 7 will fail auto check on the occasion… makes it helluva difficult to select the unit.
Not to mention that RB instructors as well as people diving RB’s in the Netherlands are sparse, as far as I know… which is another level of difficulty in whole process of choosing the unit.
You can DM me if you would like to keep the matter private.
Cheers
I wouldn’t own another Poseidon ccr based on personal experience,
As you’ve already heard, they are quite partial to failing pre-dive auto tests, mine particularly enjoyed failing positive tests and of course if it does you then have to start all the tests again ,, and again,,, and again, each time the unit just gobbles gas until the owner is tearful,
The counterlungs (chest) just dont facilitate putting bale out cylinders on , I honestly don’t know how they managed to design them and forget about bale outs, they have D rings at the bottom of the lungs yes, but just like the FMCL on inspo’s they’re just too damn low, in the water the cylinder valves are so far away underneath the diver it’s awful, I’m a fabricator so managed to make a custom set of D rings to peek out the side of the harness at a better height between the lung Velcro attachment to harness webbing,
The battery,, every so many cycles the battery has to do a learn cycle which takes quite a few hours, and it doesn’t warn you of this per-se so when your halfway through your weeks diving on a hardboat you can bet your bottom dollar it will pull that card on you and you can’t defer it until later it just won’t charge to get you in the water without going on learn cycle for 5hrs or so (if memory serves on time there) oh and the batteries are depth specific, £££…
Trim, awful machine to trim even worse with inverted cylinder set up and drysuit, I used to have 2kg zip tied on the top of each shoulder under the counter lungs just to trim out, (inverted cylinders, dry suit, sea)
The mk6,s were even worse if you wanted to put a helium mix on, as unless the mix was completely accurate to agree with the handset it simply said incorrect gas and wouldn’t pass test, ie, you test the mix and your analyser said 18.3 / 34.6 you’d have to guess and hope the automatic machine test agreed with you, so your 18/35 as you understand it could be 18/36 or 19/35 but it wouldn’t tell you that, you just got “incorrect Gas” and wouldn’t play.
The mouthpiece is very good
The self packing scrubber is good
The size is good
But you’ll never see one on a boat off to do 60-100+m dives, or at least I never have,
Their principle is a good one, it’s just not executed very well, you can buy a standard 7even with cylinders valve up with a 40m battery, and then the tec version has bigger lungs inverted cylinders etc etc and it can’t have been engineered correctly to trim and work in both guises, plus look at the new prices of them? Straight in at the price I’d want a full shearwater controlled JJ, rEvo or XCCR and if you dive one of those it is honestly night and day compared, embarrassing really. I would say if you have the money and go shearwater controlled unit if you ever use a Nerd instead of HUD you have a hell of a yardstick, (sorry for rant, I don’t hate them, they’re just so outclassed, it disappointed me hugely, I missed epic dives, and at least twice I actually shed a tear being frustrated with it on the boat when people were getting in and the slack window was gone for me)
If you dive a JJ and a rEvo you will know which is more harmonious for you and either is built well and performs very well.
