I purchased the 11-11.5M/12.5-13W for my size 11.5M Altra Lone Peak 7s, and they fit perfectly - no trimming of the insole needed. I've had them for about 6 months now and they've been great for hiking (recent 20-mile weekend backpack trip). If you're looking for the cushion of what I remember a Brooks or Saucony trail running shoe having, this might not meet your standards. Even though I'm used to the zero drop of the Lone Peaks, having the variable insole thickness (and subsequent 3.5mm heel-toe drop) hasn't posed any issues (I frequently switch between this pair and one with standard Altra insole). Very happy with this product so far, and it seems to be holding up well too.
