Found a way to get OOB at the start of Ascent Part 1 which saves having to travel all the way down to the beach and back up to get to the top of the ruins. This saves about three minutes in Hoverless.
I've been learning the run, and during my testing for this skip, I've only been able to get it to work on the CE patch. When I try to clip into the bottom of the invisible barrier on the original version (both for v1.0 and v1.1), I reach a point where it slowly forces me to the right until I'm pushed out. While running CE, the clip works easily on both v1.0 and v1.1. I haven't tested it with any of the other patches, such as ATX.
I guess that brings up the question of whether it's allowed in runs or not. I assume that CE is allowed in runs since nearly all leaderboard runs appear to be using an unofficial patch, but I don't know if skips that only work in CE would be allowed or not.