content: Maybe some. Possibly less energy efficient. In that it looks like when moving forward those tires are gunna press inward on the chassis wasted energy at that point. However, gunna make up for that somewhat in less movement. Less times I got has to go back, then forward, then bck and forward to line up. Now ya just BOOP go sideways a second. And your good.  However, increasing a workers efficiency by 20% wouldn't shock me at all with that. Maybe even 50%. So much time gets wasted sometimes trying to line up a lift just right.