For hammock SUL, I'd move to a Grand Trunk Nano 7 and cut off the storage pouch it comes with. I'd use Amsteel (dyneema even better if you are relatively light) for the suspension and put stick around the tree to protect the bark. I also just use a marlin spike hitch to join the hammock to the suspension and make sure the stick I use is stout. That's as light as I've figure out how to go with the hammock.
Not sure what the 2 stakes are for, but in the NE I do not carry them, I use sticks.
During 40F+ weather, I use a 26in wide foam pad. I find foam pads to give me more warmth for the weight, but at the expense of volume in the pack. We have the same pack, and no joke it is a challenge, but I'm able to do it when going SUL.
I don't carry a pillow. Maybe it's the angle of the hammock pitch, but I guess I don't need one, maybe u don't either?
Is a trash compactor bag lighter than a sil pack liner? A nylofune bag definitely is.
Swap Aquamira for chlorine dioxide tablets. Same effect, less weight.
Swap Photon Micro-light (heck two of them, one for backup) with your headlamp if hiking primarily during the day.
I don't carry soap or sanitizer. If I had a cut, I'd use small alcohol pads in my kit.
I use a 2l Platy with an inline sawyer filter. I no longer need to wait to treat my water, nor carry water while I wait for it to be treated. Water weighs a lot! If water is scarce in your parts, maybe rock a 3l platy instead and you can then drop the 2 x 1l arrowhead bottles.
Odor proof bags don't really work according to BPL articles. I jsut use zip lock bags for small stuff that I want to keep dry, then an old sil stuff sack for a sleeping bag for my food stores.
I don't carry a pot cozy because I am a freezer bag kind of guy. Just fill the freezer bag with boiling water and put the bag under the insulation I am wearing.
I don't carry deet. I wear long sleeves all year long and use permethrin prior to the trip, though during black fly season a head net may be needed.
For a spoon I went to Carvel and bought some ice cream then grabbed a bunch of their long handled plastic spoons. Lighter, free, and long handled. Actually with the freezer bag cooking I am considering dropping the spoon as I really don't need it. Just tip the freezer bag up and drink my dinner.
Swap the possum down socks for goosefeet socks, warmer and lighter.
I wear long pants so no need for gaitors, at least in the NE.
Just my opinions... definitely as we go lighter we may be paying for it in convenience and time. GL!