+1 to much that's already been said. UL wasn't a phase, but more of a new awareness.
The most useful part of going UL was just weighing everything and putting it in a spreadsheet, a necessary (for me) visual representation of the fact that everything weighs something, and the little, just in case things like spare batteries or a change of clothes add up. Strip the kit down, use it, and then if you have to, build it back up to where you're comfortable, mindfully, with that new awareness.
There are still times when I will find myself staring at a spreadsheet, the cumulative total weight of my gear something like 13lb 5.65oz, and spend too much time wondering what I could cut to get the weight under 13lbs, just because. I got close to 10lbs at one point, but decided it was futile, since just about everywhere I go requires a bear cannister, so I start out 2lbs in the hole(okay, yeah, I treated myself a few years ago to a Bearikade Weekender; I'm not sure I'd do it again, but it is nice to have.)
I've crept back up above 15lbs for my summer in the Sierras baseweight, but I'm happy with what I have right now, and there's not way, outside of buying more things made of cuben,(I have a Zpacks square tarp and an Arc Blast now) I could get much lower without leaving things behind.
I use an inflatable pillow now and carry a mid-size camera with filters, rather than a point and shoot. I bring an Ipad mini(which I carry in an Otterbox, because I'm clumsy)when I could just use the same Kindle app on my phone because I don't trust the battery in the latter, and even in the woods, getting caught with nothing to read is unthinkable to me.
But I still don't see the point of having straps longer than necessary, or excess shock cord, even if that stuff only saves grams. And I went out with my Arc AT, rather than a full length quilt because I'm already carrying upper body insulation, so why not use it? And if it gets down to 37F(which it did) I put on my rain pants and jacket and just sleep a bit cold. I still sleep on a small NeoAir with my pack under my legs, even if sometimes I lay there and think how comfortable a full-length one would be. Of course, the Ridgerest I cut down to torso-size would save 4oz over the NeoAir. . .
It's a compromise, but I wouldn't call it a phase.