I appreciate the feedback. For 90% of the sleds, they simply go in circles. Later ones in level 2 and more in level 3 have actual pathing where they go back and forth between 2 points.
But I do agree, on retrospect, that it would be more helpful to better signify their pathing so people can plan accordingly or I should've considered different camera angles to allow players to better see what is coming up.
In the meantime, keep in mind you can weave your tongue around various obstacles to keep them away from the sleds. And it helps, in some situations, to keep your tongue tighter so the slack doesn't get in a sled's path.