You have a nice setup.
The secret to saving weight: Take notes...
In my experience, the best way to improve upon your setup is to get out there and use it. Every trip I take helps me discover flaws in my setup. I take notes and then do some brainstorming/research when I get home. I've gone from 13 lbs. to 6 lbs. in the last 2 years from doing this.
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"Without craftsmanship, inspiration is a mere reed shaken in the wind." - Johannes Brahms