UPDATE - i've been informed quest item weight isn't added to yr total (will go test when i cbf i guess), but i'm not sure all the items i've changed are considered quest items, so it may not be completely pointless.
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I like to explore the map before I start questing, but that means i get stuck with items like the Silver Shroud submachinegun prop in my inventory. This mod sets the weight of such items to 0.0. Only non-equippable 'misc' items are altered. I only recently started questing so I'm not familiar with many of the items I edited, most probably don't stay in yr inv too long anyway, but I figured I may as well while I was fiddling. Complete list below.
I skipped some items I think you are meant to scrap. I was not able to find the weight entry for the ladies auxiliary tapes, the only entry for the tapes that is different to tapes that weigh 0 was in hex so mebbe that will change with further work on fo4edit. I also included 'Overdue book' and 'Stingwing Barb' cos hey why not.
If you think I've missed something let me know.
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item name - original weight
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airport employee id card 0.1
annikas locket 0.1
berylium agitator 3.0
buttercup toy 2.0
carrington's prototype 5.0
cybernetic implants x3 1.0
Explosive Charge 5.0
Haptic Drive 0.1
Initiate Clarke's Holotag 0.1
Jamaica Plain ID Janitor/Mayor 0.1
Mass Fusion Exec ID 0.1
Overdue Book 0.5
Palidin Brandis' Holotag 0.1
Prevent 1.0
Reactor Coolant 1.0
Reflex Capacitor 0.1
Sanfrancisco Sunlights x2 0.1
Scribe Faris' Holotag 0.1
Shaped Charge 1.0
Silver Submachinegun Prop 1.0
Stingwing Barb 0.5
Thermal Coupler 1.0
Viable Blood Sample 0.1
Warwick Pump Part/Piece 0.25
Wilson Atomatoys ID card 0.1
Installation: nothing special.