I recently completed my solo certification using side mount as my redundant gas (over the initial objection of my not side mount friendly instructor, but I convinced her to treat my second tank as a big pony and kept gas off on right tank except for oog exercises). My rig is an apeks wsx25 using loop bungees, with lower attachment to the sliding D rings on waist for al tanks, or rear fixed d rings for steelies.
With solo, however, I found I needed more attachment points than I had easily available. 2x cutting tools, lights, dsmb plus safety sausage, extra mask, visual signaling device, 2x audible signaling devices... Mostly clipped to my shoulder d rings (except dsmb in butt pouch, and extra mask strapped to a thigh pocket, and I put one of my knives on should strap tucked under d ring).
With all of that extra gear, my shoulder d rings were pretty overloaded (and I also use my right shoulder d ring to secure my inflator, plus a clip for my long hose..)
Plus, I always have a big camera rig which I usually clip to the shoulder D rings also when I need hands free.
Anyway, I quickly realized the my much loved minimalist wsx might be too minimalist for solo diving. I just could not come up with any good solution for more attachment points for all my solo diving Christmas tree ornaments. Maybe I could add D rings above the should D ring but that would ride pretty high on my shoulder? Nothing possible on waist belt due to sliding D rings.
Curious what others do for adding attachment points.
Am considering Hollis rig due to the built in attachment rings on side, but I am really comfortable with my wsx and hate to change up.
Any other thoughts or ideas?