What if after being stopped at El Alamein in July 1942 he withdraws to Halfaya Pass to shorten his supply lines while sitting on the defensive? It was a better position than digging in at El Alamein and waiting for the British, especially due to the shortened supply lines, plus if retreat was needed they were closer to Benghazi while the British were building up further from their supply centers. Assuming he did this how long could they hold out at the pass and what impact would it later have on Torch if they could delay the British at the border for longer and not sacrifice as many men?