That's a new one on me and I shall certainly try it if I have the same situation.
We had our first (this year) very difficult lambing last night; it beat me so BH and I swapped places. First lamb was dead and, as so often with dead lambs, not presenting well - if you got the legs forward the head flopped back and round, etc. The ewe wouldn't stop pressing, hard, which didn't help. If I'd been on my own I think I'd have had to call the vet for an epidural to stop the ewe pressing so I could get the lamb organised, and I might have had to use a wire around the head to keep it straight. However, BH, with all his years of experience, worked out what was going on very quickly, couldn't get it straight, turned the ewe over onto her other side and got it out more easily. The happy ending was the two lambs behind were big and strong. All three doing well today.