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Discussion in 'DIR Diving' started by Samantha CoolBeans, Jul 25, 2017.
What metric do you use to measure competence if you are self assessing, still breathing?
Self assessment is a core skill of any dive training, it apples both to good and bad. Being able to recognise weak skills
and looking for help is every bit as important as being able to recognise when comfortable and confident in the water.
Except for the twinset protocols; shutdowns, donate, fault-finding, etc.
But (and please don't take this in the wrong way), you probably configured your twinset similarly to the way you configured your singles with backups on the left, etc. Things are a bit different now in that twinsets are generally configured in the DIR fashion with a longhose and bungeed necklaced backup -- this is the accepted standard for most twinset and tech courses from most agencies.
Interesting and good point about diving the hell out of singles though. This probably explains why PONY bottles are common with those types of divers as they've reached the limits of singles diving.
Disagree. Singles & twinsets are completely different animals.
A twinset's about resolving issues: resillience; shutting down valves, etc. which is essential when you're diving deeper or in overhead environments (soft or hard overheads). If you've a freeflow, switch over and shut down; maybe it'll resolve. If you've a burst hose, no problems, switch and shutdown whilst saving your gas. All of this goes for the hose routing too; necklaced backup so it's always to hand, longhose around the neck so it's in place and ready to deploy.
A single's basically done for if there's problems; if it's freeflowing or a burst hse, you can't reach the valve and in any case there's no second independent regulator to use whilst fault-finding or shutting down. Hence the ubiquitous PONY to give a small independent gas source which should work for a recreational ascent straight to the surface.
You REALLLLLLY need to join BSAC, @Wibble , go on a few branch dives, and then do the twinset SDC so that you can see the variety of rigs that are commonly used in UK 25-60m diving.
It will also show you just how fucking bad self-assessed competence actually is...
Seen a lot of them on dive boats. Twindies through to WTFIT...
But by far the largest number of rigs outside of BSAC are DIR.
Hey, as well as not needing to do shutdowns, twindies have the added advantage you can put a different gas in each cylinder.
You can do that in twins as well, as long as you keep the manifold shut
Lol, do you tell your grandma how to suck eggs as well
My config was as per one William Hogarth Main as by that time i'd already gained the ability to read
That's what good divers do anyway. They reach a limit they stay put or move on. That's change for a purpose,
not because it's a fashion statement .
Right so you are saying a twinset Instructor is unable to teach a singles diver then
Tell me if you ever go CCR, will we have the same number of posts saying how OC is rubbish and CCR is sooo much better
Yeah but you are adding another failure point!
Remind us all how many dive boats you’ve been on Wibble.
That is absolute horseshit. It may be true in your very limited experience, but it’s not fact by a long way
Does this apply to buying dodgy Russian dive kit off the internet?
Or refusing to accept the advice of instructors that might know better than you?
Dodgy how? Please explain.
When did I do this?
Blimey, you lot need a holiday.
BTW @Tel, why do you consider a twinset a fashion statement? Isn't it a tool for a job and pretty ideal for the challenging conditions often found in the UK?
Don't you? A holiday from the wind would be nice and then those who dive in the sea can get back to diving.
When did the UK become so challenging? Has anyone told the majority of divers, with their singles, with optional PONY? (why caps? )
When I saw my diving becoming more challenging I went CCR as being the configuration giving most options.
Piss Off Not Yours
UK's challenging compared with warm, clear, shallow, benign diving abroad.
? Piss off not yours? Since when? It's an alternative air source in every BSAC lecture ever.
If someone is trying to define it as something else, then crack on with the outside SDP teaching.
Pony and trap?