Yes, when I dive on the boats up here I usually go alone, or without planning on making a buddy on the boat. But if there`s another dive who`s planning on going solo and who probably shouldn`t be soloing yet (because they`re only AOW) I take them along with me, this happens all the time. If it`s some intense deep dive, like the Oregon or something deeper, I make sure I have a buddy. I`ve done the USS San Diego solo twice, usually it`s on an in-shore wreck though. Like all dives though I have a few reels, two lift bags, two strobes, and if it`s deeper than 60ft I have a pony slung, and any necessary stages I might need (but for those dives I have a buddy). I always set my alarms on my computers for at least 200lbs before I have to be on the ascent line back, and I keep my ears open for them.