Saddle Arch Loop via Upper Muley Twist Canyon Loop Trail(edit)

Why, oh WHY is noone talking about how dangerous this trail is? With a 30 pound pack on, I was legitimately scared and decided to turn back, for two reasons: (1) According to my GPS map, there is a large variance in distance and elevation between where the trail should be, and where I was, to the point where I thought the cairns were for a different trail, and (2) the sheer drops in the slickrock and cliffs, mixed with sometimes loose rocks that you're depending on for hand and foot holds, made for a very dangerous experience especially with a pack on. Location wise, I went clockwise at the split, and decided to turn around at pretty much the northern most point. I thought if the trail DID continue, I couldn't see how it would get past the cliffs to the east of me since they were SHEER cliffs, so at that point I decided to turn around. I'd recommend having a buddy to tether to, it's that nerve-wracking. To get my point across, I'm not a scardy-cat but I do have my limits (I've ridden my track-bike around Daytona International Raceway at 184mph, dragging a knee around corners, but I felt this trail was way more dangerous than that.