| Training
Training is useful from the perspective that you can learn to recognise unit failures and take corrective action. However there really is no way to learn about how physiological symptoms feel and affect you except through experience.
The training courses advocate flushing the loop in the event of physiological symptoms however IMHO this may not be quick enough to get "good" gas flowing round the body.
As KISSER says, it's more dangerous when a diver believes that the cert card then means they are competent. There is a difference between competent and experienced. It takes time to recognise failures and understand how to correct.
I taught myself to dive my RB in controlled conditions and through experience came to learn that not everything critical for survival is actually covered in the courses. A user will learn how to dive a unit but only experience will teach a diver how to recognise correct RB patterns and failure modes.
After later doing a course for interest this was reinforced. Physiological symptoms can hit hard and render it difficult to make decisions. Having surfed the learning curve the hard way and asked TDI to change course content to reflect, divers definitely need to take some responsibility for learning through the experiences of others and not just through some training manual.
Training can lead to a false sense of security through divers believing that the course content will have contained everything they need to know. This can not be possible as there are so many spurious things that can happen with RBs and only experience teaches the diver how to recognise and what action to take.  |