I'm looking at a sheep hunt this year and was initially planning to use my Simms waders and wading boots to hike in and then stash them after the many creek crossings needed. While I don't mind doing this, I don't necessarily want to carry my 5 pounds of leather boots in my pack while I'm traveling in and out of the higher country. I have an older pair of Scarpa Inverno's with the high altitude liner. I've only used these for ice climbing, but am pondering using them in combination with some Barney's Glacier Socks. I'm concerned that my liners will be way too warm for me and am looking into a warmer weather liner. Are you guys who use plastics finding that your feet are too warm with the factory liners, since most of the plastic boots are aimed at winter type activities? If nothing else, I can get another pair of plastic boots. Any tips or recommended boots and liners are appreciated. Or, if there's another trick that doesn't require taking my boots off all the time to cross creeks, I'd like to know.