I am currently looking at switching to a saddle being that I started hunting public land this year and I have 2 different areas that I hunt. My tree stand that I bought is not the lightest thing in the world so a saddle would be the best thing for me right now. Now I have been looking at the tethrd set ups and the aero hunter and on aero hunters website I see that they have 3 different models. I looked at the description for all 3 and I see that the materials are different but other that I dont really see any difference in them and was wondering if someone else might be able to shed some light for me. Thanks!