Riding Blind with your DSMB reel

[PfcAJ]

That's it? It's only usefulness is if you can't do a little "what ifs" in your head during a dive? Pfffft. So, there are no real benefits then. It's indeed a solution in search of a problem. I'll stick to redundant PDCs.

And you're unable to do them with your (lack of) methods. Some of us aren't content with just following numbers on a screen.

If that's how you want to roll then go for it.

 

[The Chairman]

And you're unable to do them with your (lack of) methods.

You can't do it with a PDC if you don't understand it. I'm able to infer those things just fine. Not that important in a cave, mind you, but I do those what ifs in my mind all the time.

 

[PfcAJ]

You can't do it with a PDC if you don't understand it. I'm able to infer those things just fine. Not that important in a cave, mind you, but I do those what ifs in my mind all the time.

Infer? Sounds real reliable.

Is also important in a cave. Gotta know how extending your dive will impact your decompression. I keep the ratio relationships in my mind all the time when making decisions.

 

[DevonDiver]

Nice illustration of the effects of a strong surface current (windy?).

However, as Remy said... "once your weight is on the DSMB".... whereas the diver pictured is clearly in neutral buoyancy, not hanging negative on the line.

But that begs the question whether you'd want to hang very negative simply to keep the DSMB line vertical. I guess you could IF relying on the line as a measure of depth... but normally, you wouldn't want to.

And, of course, it does also depend on the size of the DSMB used. Smaller bags.. i.e. 3ft thin ones... drift considerably less than bigger ones.

 

[The Chairman]

Infer? Sounds real reliable.

So far, I haven't been bent or come remotely close to using half of my air by the end of the dive. So yeah, it's been very reliable. Have you ever been bent?

 

[PfcAJ]

So far, I haven't been bent or come remotely close to using half of my air by the end of the dive. So yeah, it's been very reliable. Have you ever been bent?

Bent? Yeah. Not bad enough to go to a chamber. Never from ratio deco though.

I've also used more than half my gas...not sure what you're getting at with that?

 

[The Chairman]

I've also used more than half my gas...not sure what you're getting at with that?

How I dive works for me. I am ultra conservative on tech dives for a reason. I like me just the way I am: unbent.

 

[PfcAJ]

How I dive works for me. I am ultra conservative on tech dives for a reason. I like me just the way I am: unbent.

Ok? You're more than welcome to dive how you please. I really don't care what you do. We're unlikely to ever dive together, so there's no need for us to agree on anything deco related.

Still has nothing to do with ratio deco bending people.

 

[northernone]

Nice illustration of the effects of a strong surface current (windy?).

However, as Remy said... "once your weight is on the DSMB".... whereas the diver pictured is clearly in neutral buoyancy, not hanging negative on the line.

But that begs the question whether you'd want to hang very negative simply to keep the DSMB line vertical. I guess you could IF relying on the line as a measure of depth... but normally, you wouldn't want to.

And, of course, it does also depend on the size of the DSMB used. Smaller bags.. i.e. 3ft thin ones... drift considerably less than bigger ones.

Back on topic.

Tested the "mark on a line attached to a smb" today during deco. Got 9lbs negative (combining spare lead) and hanging on the line like a flounder while motionless at 30ft gauge..... today the line mark would have needed to be at 55ft.

That has me unwilling to consider this theory practical unless in predictably still water.

That is all,
Cameron

 

[The Chairman]

Ok? You're more than welcome to dive how you please.

Gee rly? I can? Oh, how I wish I had read this before I tried to sleep last night. All that tossing and turning over nothing.

I really don't care what you do.

Yet, you keep trying to convince me how great and safe it is without giving me any real benefits... other than to my ego for being one of the "in" guys who can.

Still has nothing to do with ratio deco bending people.

Sadly no, it won't. People will still be making simple mistakes and getting bent trying to understand and use this system. You'll tell us that it's not really RD's fault and the sane people will shake their heads and clutch their PDCs a bit tighter.