We've been looking at Toy haulers for over a year now, so I've seen a lot of them. What I've noticed is 3 different brands or styles of "track type" roll-up screens. No manufacturer name on them and they were all different. One had a latches on both sides right next to the track on the floor. It latched well and seem to be very high quality. The next was one of equal quality, but no latches. It worked like a spring loaded window shade and had a rubber weather strip on the bottom (like the one in the Cyclone). The only problem was it would bunch up in the tracks sometimes when you would roll it up, but the parts seemed to be made tough and sturdy. Last is the Cyclone's. I hate to say, but it was the least quality one I'd seen (track and roller housing were thin and flimsy). These were the 1st Cyclones we'd seen. The dealer had 4 of them, all with screens and all were there the same. Not one would stay down for any length. You could get them to stay for a few seconds and then they would all of a sudden fly back open. We are very impressed with the Cyclone and believe this is the Toy hauler for us, but I don't think I'll be ordering the optional rear screen. I'll be talking to them at the factory about it, but I think I'll get one of the other types and install it myself. Maybe it just need to be adjusted, but all four worked the same. Even if you got it to stay down, wasn't made very well.
Again we really like the Heartland product over all and are looking forward to becoming part of the family.