
It's April, so let's stir things up a bit. Car shuttles are dumb. If you have 10 days to go hiking, why would you spend 9 days hiking and 1 day driving cars around when you could instead spend 10 days hiking? Nevermind that driving two cars around to the same places costs you money and pollutes the environment, who has the time to just set a day of hiking on fire to instead sit in a car doing what you do on your way home from work? Sure, all these bucket listy hikes are thru hikes. But if you're reading this site, it's because you're better than the sheeple who mindlessly walk a trail because someone gave it a name and other people do it.
Oh and thru hikes. Inevitably they require crazy long car shuttles, resupplies, and a bunch of silly logistics that I have no idea how anyone finds fun. There's a reason why more recent named routes (Circle of Solitude in SEKI, Skurka's various routes) are loops. Thru hikes also focus on hiking trails, rather than hiking to destinations. Don't hike the High Sierra Trail, hike to Hamilton Lakes Basin, 9 Lakes Basin, and other things you want to see along the way. When you start thinking about hiking to places rather than trails, you'll discover there are often better ways to cram a bunch of cool places together than 1 named trail.
Yes, I realize no one wants to do an out & back. But there are so many better ways of seeing different terrain on your hike back than spending even more hours in the car.
So in the interest of being a fountain and not a drain, here's some suggestions for how to avoid seeing the same terrain twice on a hike.
The Gravity Shuttle - All that knee pounding on the down can be easily turned into coasting with the right road and a set of wheels. Theoretically, you could do this with a set of Heelys, but I've only done it with a bike. For example, drive your car up to the top of say, Sonora Pass, drop it off, and use your bike to coast down to Kennedy Meadows in 20 minutes. Chain up your bike in the woods out of sight, and you've accomplished a loop. Hell, even walking the road for a few miles isn't so bad, because only one person in the crew has to do it, and you can stash all your gear in the woods while you retrieve the car.
Use cross country passes to make a loop - Like, duh, right? Everyone on this forum has been doing this for ages, but in case you're the one person who isn't, just because the trail doesn't go in a loop doesn't mean you can't make one.
Hike in the dark - I'm not kidding. I end up doing this a lot anyways on long day hikes, when I start early or finish late. Don't want to see that boring section of flat trail twice? Let the sun go down, and you'll be checking out weird scorpions & centipedes that come out at night. Worried that the long nights will be a problem in late September? Hike during that time. You know that *woah* moment when you come out of your tent at night to pee and look at the stars for the first time? Plan to be awake for that with warm clothes & a thermos of miso soup.
Con your parents/kids/friends into going on "vacation" - "Hey mom, wanna meet me for a weekend in Mammoth?" You can tell her that you'll need to be picked up at Saddlebag Lake later. Now all you have to do is put up with your parents & a front country weekend... nevermind this is a bad idea.