Is doing 4mi-Pano-Mist Trail alone a bad idea?
25M, I have done 6-9 mi hikes with friends. Last was a 8.1mi in Big Sur which was about 1430ft elevation gain. We did it in 5-6 hours but I have to say we had to frequently stop or slow for one of our friends in less than optimal shape. If alone I probably could have done it in 4-4.5 hours without much of a problem. The terrain was pretty rough, trenches, rocks, mud, overgrown to hell, just no scrambling.
Other context: I've been training for a marathon and have regularly hit 25-30 mi a week with little to no soreness for the past month. Longest run has been 10.5 miles in about 2 hours and in 85-90 degrees. I feel strongly I can complete the hike solo in 12-14 hours. I'm aware the elevation change is 4000+ ft and it's 14.3 mi not counting the walk back to the car.
But really the question is: is it a "bad" idea to do this big of a jump by myself? None of the homies are into long-distance events and I have weird days off.