I have noticed Olympians and also at meets I have been at over the last six weeks that people are getting their suit wet before they race. I have always recommended that you do not dive in the water with a wet swim suit. Many suits are made of closely knit material and are water proof. Water droplets can not pass through these suits.
I have been telling swimmers not to wet the suit before they race. The reports back to me is that they are faster wearing a completely dry swim suit before they enter the water. Comments please.