In the end there is no one solution. There are times when long arms are essential and times when no arms at all are best (to stop the damn things getting in the way!).
Here is a photo of my rig on normal wide angle shooting. But there are times I wish for longer arms, and times I wish for shorter.
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I have taken arm sections off underwater (a pain when they have buoyancy on them) and also times when I have put all the arms on one side to get a strobe where I want.
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And there are shots that are best taken with no strobe arms at all. For this dive (as I usually do for WAM shooting) I went in the water with the strobe attached directly to the housing (no arms), while shooting with a fisheye.
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The main controller on required strobe arm length is camera to subject distance. Not lens. Not particularly conditions.