Dakine scout mitten?

I've been using the element mitten (about the same as the scout I guess, except different liner) for about 3 weeks now. And it's been pretty much perfect in temps between -10 and -20 celsius (15 and -5 fahrenheit), they've got a pipe glove as a liner instead of a fleece thingy, but I think the fleece thingy might be warmer. Atleast the DKdry stuff seems solid in cold weather, don't know how they are it if they get all wet though, but I wouldn't use mittens in wet (hotter) conditions anyway..

i have the scout glove, which i got off backcountry.com for $11

its amazing. the liner is great, i use just liners when im carrying my skis from the car or putting them on the roof or anything like that.
then the combo just makes it so warm and comfy to ski in, i hardly get cold fingers unless i've been sweating and the sweat starts to freeze a little.

its a great glove for the price

How is the sizing on them?  im in between the medium and the large on the sizing chart.  Should i go bigger or smaller?