Verify they're on the bounce list before bouncing them to prevent people with high ping from firing the event multiple times, leading to higher velocity then others. Now once the event is fired the first time, it adds them to the bounce listed so they cannot possibly get more velocity from more event fires. We apply the 5 tick delay to ensure they've taken fall damage before the next bounce to ensure they bounce upon landing. Sadly, since people in flight and god mode doesn't trigger fall damage, we need to exclude them from this fix to prevent them from never being able to bounce again as they would be added to the list but never removed.