I have a question on the terrain rating, about the 2 mile hike. Is that one way or round trip? That has never been very clear to me. I am going to be doing a few hides that are about a 3-3.5 miles round trip hike from the parking lot. They are along a hard pack trail, no overgrowth, the only issue is the distance. Just wondering if that would be a 2 or 3? Maybe I'll just call make them 2.5 and be done with it.