Because a squirtboat is in the water and not on top of it, moving around in a rapid can be difficult. Most squirters pick lines that require the least amount of movement. Subbing through a hole is a common move for advanced squirters and is preferable to slaloming through boulders. Another common technique is to paddle a rapid with the stern engaged, which keeps the boat stable and the bow from sinking. If you see pictures of squirters floating through rapids it is very likely that all of their bows will be pointing at the sky. Recap: Pick the deepest line, don’t worry about most holes (excluding pourovers), and run rapids with the stern engaged.