Does that explain why so many new folks that come here asking questions don't follow up when we ask for more information--they're already lost in the wilds?

Seriously, though, we do need to know a bit more about your background and what kind of trip you're planning to be able to respond to your questions.

I do know that Erin McKittrick and Bret Higman, in their hiking/packrafting/skiing expedition up the BC and Alaska coast from Seattle to the Aleutians, used a MLD Mid. Here's their web site. Note, though, that this pair had a lot of experience with Alaska conditions before their trip--3,000 miles of backpacking and packrafting.