Indeed they do. Like this for example! One of my short runs attached to one of my tall runs.My first run was as you've described, tall then short. It's been 20years of trial and error that has lead me to no "short" runs. What a pain in the rear. I "thought" I could just get my rake under the short parts or whatever, not sure what I was thinking because how much money does it save really? You have to hardware cloth the top when it's short. Just not beneficial enough in my opinion. Predators will actually hang out on top of short runs but very few want to climb my 7ft. chain link.