I think they'll be great for a ROS. I only messed around with the ROS at ground height in the backyard so far though. First thoughts: the OCB buckle is a game changer... way better than the typical buckle. I watched
@Nutterbuster video on how to get the OCB tight with a ROS and it helped.. had no problem getting them tight enough. They "settle" a bit as you move around the tree but not bad and once they settled in they didn't move anymore. Like I said, I liked them so much in the ROS set-up that I ended up putting them back on their individual straps and playing with them to climb. I like 'em man! They'll definitely be my ROS this year. One concern: If they're in the bag loose, they clank together and are noisy so they'll either need to be packed tightly or silenced somehow. They also don't stack or roll together very well when on the same strap for a ROS. The Squirrel steps look like they'd pack together better. I've never tried squirrel steps so I can't compare the two yet.... eventually I'll pick some up. If I end up with Squirrel steps as my ROS, I'll just add the 5 SA steps to my climbing set.