No need to go around the green forcefloor all the way twice. As you enter, don't go first for the chip at the end of the water. Skip it and go for all the others. On your way back up, after getting the 3 chips behind the fires, key right to the water. Get the chip, then exit right & complete zip trip.
Also, when picking up the first chip off the force floor, avoid stepping on the blue tank button. If you step on it, it makes passing the tank in front of home more difficult.