Ruff Tuff Cover Installation Help

Guys running Ruff Tuff seat covers on third gens, where did you run the two side "draw strings" through on the front seats?! Installation was going fine until I got to this part. They say to tuck them through the corners but every way I try they are over sharp edges that will surely chafe them over time...it was getting late so I ran them under the seat tracks for now but that doesn't seem like a great option either but at least they are rounded off on the bottom and not sharp. I emailed Ruff Tuff but this is a great resource as well and thought someone might be able to steer me in the right direction before they respond. Thanks in advance!!!!!