I am planning a 2013 NOBO PCT thru-hike.
Currently I have 2 large decisions to make that could mean the difference between a 14.5 # base weight, and a 11.7 # base weight. (There are a few other minor adjustments being made as well)

The two major decisions are pack, and shelter.

The pack decision is between the ULA circuit and the Zpacks Arc Blast.
The shelter decision is between the TT Notch and the Zpacks hexamid solo Plus.

These two decisions will set me back a few hundred more bucks if I choose to go light. Is it worth it? How much is that ~3 pounds difference going to effect my life on the trail?