Just a few possible omissions spring to mind
@cuprajake :
Other bags/waterproofing (I'm assuming you don't just tip everything into your pack as it is)
Waterproof shell (I'm assuming you take waterproofs and don't plan on wearing them permanently)
Some kind of navigational equipment
Water filter, plus a means of carrying more water than you can fit into your 1L (apparently weightless) platypus
Insulating clothing layer, at least a jacket/pullover (carried unless wearing)
Gloves
Hat(s)
Midge net
Wallet with cards/cash/keys etc
that ditty bag with repair stuff, spare cord, etc
Mobile phone (I salute you if you don't carry one, but most people do)
Power bank (ditto)
Also:
217g "poop/cleaning'?? - do tell!
80g 'fuel' - usual protocol is not to count fuel as baseweight, but to include just your fuel container
160g seems a lot for a (summer use) headlamp
and 114g seems a bit over the top for a pump
and 149g seems 149g too much for a radio (sorry)