zach,
I thru-hiked the AT, CT, and PCT all using a 2007 golite JAM-2. I absolutely loved the pack. The only problem is that golite has released the JAM again, and it is now a tad bit too heavy for my liking (I have been eyeballing some ULA “ohm” packs recently). They did finally add some small pouches around the waist strap though. I also used an old 07 pinnacle during the high sierra section on the PCT and it performed the same as the JAM…with a little more room.
As far as the lunar solo…I used this shelter for my AT and CT thru-hikes. Great setup. It’s light, roomy, and requires no poles. The only downside is that sometimes it can be a little frustrating to setup correctly. On the PCT i used the gatewood cape for the desert section (the poncho version of the lunar solo), and then switched to a tarptent moment (a little heavier, but sets up in under a minute).
so long story short…all good gear, although I can’t speak directly about the newest release of the JAM/Pinnacle other than to say it’s a bit heavier.
hope that helps
_lakewood_