Last weekend I got to meet a fellow ultralighter and really enjoyed looking over each others gear selections and techniques.
I imagined a whole group of ultralighters getting together in the woods and talking over gear, techniques, trips and just meeting new hiking partners.
Here's my idea: a weekend backpacking trip where only the campsites for Friday and Saturday night are announced. Come when you can, leave when you have to, hike as much or as little as you want. Pick your own trailhead and route to the campgrounds. Just plan to meet in the evening/morning at the designated spots on the map.
Since so many people have different hiking speeds, min/max distances they'd like to cover, etc, everyone can plan their own days, but meet together to share a campsite.
For example, I hike a lot in the Deam Wilderness outside of Bloomington, IN. I could setup a weekend with some nice campsites off the beaten path (you'll need some familiarity with a map to find them), but you would build your own weekend hiking goals around the campsites. Minumum hiking distance would probably be 4-6 miles between Fri and Saturday night locations, but you could certainly hike much, much more than that.
Any interest from backpackers in this region?