I have a large Tamtrac camera bag that I usually use for fests or jam Cruise when I carry extra gear. The interior has a wide Velcro strip around the perimeter. My plan is to carry the MM flat....when running I can put a wide Velcro strap across it to keep it vertical. I also have a smaller bag when I run just the 744T or am using the mp-2. I think it will work out ok.