I visited Aerostich yesterday and tried on the AD1 pants. For me, the knee pads sat too low and they can't be adjusted and the pants can't be altered. I tried on the Darien pants and they were a little better but the knee pads were still too low. Thankfully, the Dariens can be altered so I'm having the knee pad area moved up 1.5 inches and also having them skip the velcro for the thigh map pocket. The alterations cost more but I think I'll be a lot happier with the result. I should have them in about 2 weeks.
Here's a pic from the rest area overlooking Duluth as you approach in I-35. Welcome to Minnesota!