I tweak on the "The Kirby Sailboat formerly known as The Laser" class every so often, but you can't knock the world class quality of these dinghy sailors. The Laser Slalom was a big deal in the 70's but stopped as a competition after about five years. I remember 30 years ago, they set a Laser Slalom up in Annapolis.... there was some breeze and my attempts to master the close set marks, particularly gybing, was very ragged to say the least.
Thankfully someone resurrected the Laser Heavy Air Slalom this year in San Francisco and this great video captures some of the highlights and lowlights (like the almost total submarining about 39 seconds into the video).
Laser Heavy Air Slalom from Tj Stacy on Vimeo.