Just yesterday, I saw a photo posted of a diver from Monterey with 25 dives, who had just passed Fundies:
The photo struck me, because I recently dove with another Monterey diver, who had the same very straight line from the torso through the arms to the hands. As I watched her dive, I was thinking that, if I had to hold my arms in that position all the time, I would be very uncomfortable. Even extending my arms straight above my head sitting at the table causes strain in my shoulders. I CAN assume that position while diving, and I have photos to prove it, and I do it when the space through which I am moving requires it, but I don't dive like that all the time. I more typically relax the shoulders and bend the elbows, like so:
I'm wondering, for those of you who worry about trim, do you resemble the first photo more, or the second? And, aside from a small increase in streamlining, what is the benefit of diving in that rather artificial position all the time? (I acknowledge the benefit when moving through small spaces, or swimming into high flow or current.)

The photo struck me, because I recently dove with another Monterey diver, who had the same very straight line from the torso through the arms to the hands. As I watched her dive, I was thinking that, if I had to hold my arms in that position all the time, I would be very uncomfortable. Even extending my arms straight above my head sitting at the table causes strain in my shoulders. I CAN assume that position while diving, and I have photos to prove it, and I do it when the space through which I am moving requires it, but I don't dive like that all the time. I more typically relax the shoulders and bend the elbows, like so:

I'm wondering, for those of you who worry about trim, do you resemble the first photo more, or the second? And, aside from a small increase in streamlining, what is the benefit of diving in that rather artificial position all the time? (I acknowledge the benefit when moving through small spaces, or swimming into high flow or current.)