I'll be headed up in week to spend 8 days in the backcountry. I hunt solo and have had success in the past on elk but looking for things to maximize my effectiveness hunting solo. Looking at the the montana decoys, the rump decoy and the RMEF cow. They are both approx. 3 lbs. I was wondering, how effective are these? Are they worth the weight and bulk to haul 4 miles or more back into the backcountry? What are some strategies you use to employ them?