Doesn’t matter how light your spreadsheet is, everyone “would like to get about two pounds lighter.” Obviously any suggestions will be aimed at things you value, otherwise you wouldn’t have them in your pack….
Your list is very complete, but maybe you have some overlap too. I agree with the comment about looking at your electronics. You probably like all that tech, but it really adds up especially when you are carrying all that in addition to a regular compass and thermometer, etc. Low tech will save you half a pound.
And yes, there are lighter backpacks that will do the job for your expected carry weight. I am a fan of the ULA Circuit, but there are others. To me, this is your spot to pick up considerable savings on the list. Lighter packs may not carry as well as your Gila, but they will be good enough.
It appears you like to organize your things — I think I counted half a pound of pouches, pods and ditty bags. To each his own, but maybe try to cut back in that area and see if you miss it.
I assume your Uberlite pad is a Wide since the Regular is a couple ounces lighter than listed. Your list is quite detailed so you may want to update that. Also, your Hyperlite Repack is 1.4 ounces, not 14 ounces. There’s three quarters of a pound saved right there!