I mostly backpack solo. I actually find it more risky to hike with a group, because I'm really pushing my limits trying to keep up with them, including scrambling through places I would normally avoid. I also find solo hiking a lot more pleasant. However, I do try to stick to the more populated trails, so that if something should happen there will be someone coming along soon. At least that was true until I bought a Personal Locator Beacon. I still avoid risks (no difference there--an accident at my age [74] would mean a permanent end to my hiking career). However, with the PLB I will go to less populated areas and, when possible, get farther off the trail to camp. I will also do a limited amount of easy off-trail hiking. I wouldn't recommend these unless you already have a lot of off-trail navigation experience gained from working with groups. And the PLB can be used only in a life-or-death emergency, so it is no substitute for careful attention to safety, navigation or being fully prepared. Nor is it a substitute for leaving your itinerary with a trusted friend or relative and sticking to it, something that is extra important if you go out alone.

Jim, does your SO know what you're doing when you're out solo?