Oh boy, I love FAK threads...
You're worried about weight, yet you have individual blister paks of meds? Take them out and toss them into small baggies (you can "dime bag" size at a regular pharmacy - enough for 4-6 pills).

Ditch the SOAP notes. You're worried about documentation? Really? If you're that worried, write on the patient's forearm or something.

Biohazard bag? You plan on carrying around a full red bag once you've used it? Gauze burns. Blood dries.

I'd drop the purification tabs, simply b/c I've never had problems with a filter or boiling. Not that it saves much weight.

Bye bye CPR barrier. How long do you plan on the blow-blow, pump-pump? Until someone comes upon you, gets out to call a ranger, and they get in to find you? If you have a heart attack on the PCT, you've pretty much come to an end. Sorry, but at least it's a great place to die.

Why another flashlight? I assume you have one already.

Prednisone? Pray, tell. If you have asthma, OK I can see that. Otherwise, what are you trying to do with it?

Caffeine tabs? Again, why? Lighter than coffee or tea? Headaches?

I'd dump the bismuth (liquid) and stick with the pill-form antacids. More doses per weight. Drop the electrolyte tabs. Too much redundancy in the anti-histamine department (Benadryl, loratidine, pseudoephedrine/diphenhydramine). You pretty much just packed 3 antihistamines.

Keep the After-Bite. Add more. Trust me, I've done most of the PCT in California (not at the same time). I'd ditch the eye wash and use water if you need to rinse your eyes. Ditch the surgilube - again, why do you need it? I'd also ditch the benzyl-cholor pads. In fact, I'd probably ditch all of that section, except the Neosporin. Nothing soap and water wont' fix.

Ditch the paper tape, it won't stick well enough to stand the trail. The 3M "plastic" type tape works amazingly well (I've had it stay on for 2 days holding bandages on blisters while hiking) if you feel the need to carry something besides duct.

I'm not a fan of band-aids, but I suppose they're light.

Probably OK on the bandages. I'd fiddle with them to my taste, but you've got a decent variety. I might add another gauze roll though. Non-kerlix type.

HAVE A PHENOMENAL TRIP!!