ivobj
Contributor
Looks like you got an answer to your question on the Quest list. It was a good question to ask, as I'm sure others have had the same question.
Indeed, it is clear now. The kind explanations I got in Quest list (trogloxene quote JJ`s explanation already) plus the opinions here solved my doubt, the reason of the pictures was that previously it was accepted to use this way, but after experimenting both ways, and also in wrecks, it was concluded that left hand was better and the system updated, as many already posted. So it is "non DIR" now, although not always this way.
I will get a shorter light cord and get used to the light in the left hand, if such experienced divers found it better even in wrecks, after trying other options, I'd better take advantage of their experience and try to do it better.
Well, I guess I don't have any other doubts if something is DIR or not, so you will not have to bother with "non DIR" posts from me...