PARIS (AFP) - Usain Bolt will be seeking to further hone his technique ahead of the world championships in South Korea later this month when he races the 200m at the Diamond League meeting here on Friday (today). It will be just the second time this season that the reigning world and Olympic double sprint champion, who is also world record holder in both the 100 and 200m, runs the longer distance. "It's only my second 200m of the season (after winning in Oslo) and I'm just working on technique. It's all about execution in this race, and trying to get the perfect execution," said the 24-year-old Jamaican.