Jay – Thanks for the reply and suggestions. I hadn't considered the scout, as it's not officially approved, but I searched a bit and found a thread you may recall. In it I learned there is not a single official approval organization any longer and hikers showing the scout to rangers have had no trouble on along the JMT. I'm still in early planning stages for exact timing, route, and food drops, but I may be able to go with a scout and use my orsacks for the first bit of overflow.
As for no ice axe or microspikes. I understand my expected start date range *can* be early enough to encounter snow conditions where one or both are recommended. I presently know the hike well enough to evaluate how easy it might be to reroute the usual worst areas for steep snow. Definitely weight savings to leave them at home.
The camera is heavy and I do have an older elph that's lighter. It's tough to leave when it's got a much better lens range 28-280 vs. 35-105. I'll weigh the elph so have an idea of the weight saved.
Scott – I should have said the "Oh, no, not-another…". The GG mariposa plus stands out as a jmt fave. My only concern is the lack of load lifters, which I am used to and find I do adjust depending on how my hips/shoulders feel. What max weight did you carry with it?
For food, I actually think more than that each day, but as there is supposed to be plenty of available water throughout the route, I'm thinking I can dehydrate more food that I normally would and save weight without sacrificing calories. I see what you mean though. Some days are sure to be very high in burned calories and I'll likely need to sustain fitness/caloric intake for approx. 3 weeks. Care to share any favorite high-cal/weight foods?
I've seen posts where headnets were recommended. Didn't know if I'd be fine with just DEET going a bit early. I've had good luck with my steripen in the rockies at well over 10,000 feet and around freezing as long as I warm the battery before use. I do like the idea of emergency backup and a half dozen chlorine dioxide tabs amount to a low-weight/volume backup plan. Thanks.