I understand that the mosquitos are out in force at the portal and also up to TC. How about bear activity and marmot control. I have heard that leaving your gear packed up is asking for trouble. I had planned on taking my pack stripped down up to the summit carrying perhaps 10lbs total and leaving my sleeping bag and other gear all packed and ready to load back in to my pack when I returned so I can move on down the trail to the portal. Is this a sound plan?