Sir; A few issues ago, I read with interest the coverage on the Efficient Consumer Response conference in Turin. As an ex-supermarket manager, who retired long before technology allowed this kind of strategy to appear anywhere but the minds of those in charge, I applaud any initiatives that get products on the shelves quickly and avoid customer disappointment. How wonderful the supermarket industry is in the 21st century! Or so I thought. But it was impossible to shop in a supermarket in peak times during the recent spate of Bank Holidays and the Easter weekend, without leaving empty handed. Your Grocer 33 pricing table shows this up, but there's nothing like experience to really demonstrate how much of this so-called ECR thinking needs to be translated to the shop floor. Michael Palmer Ipswich {{LETTERS }}