* - February 2008 is the date when poly suits were first introduced. Listing the records at this date is open to interpretation. There were a number of world records in Melbourne 2007 after some relatively quiet years 2000-20006, this could also be explained by faster suits. Its hard to forget all the claims made by Speedo of how much the various Fastskins were supposed to drop drag and reduce effort. Most people that have ever worn full legs or full body suits would agree that they benefit you, regardless of the textile/non-textile argument. Fastskin II was supposed to drop the drag by 4% to all other suits, clearly an advantage. The reason I haven't set it back to 1998, when bodysuits first came on the scene, is that swimmers have unquestionably become faster since 98 in most events. They train harder, for longer and have better support nowadays than before bodysuits. It is fair to assume that the 1998 records would have been broken, in most cases, by the same swimmers with or without the bodysuits.