Hope you don't mind my making a suggestion: your traveler line is way too loose. The boat sails much better upwind with the traveler as tight as you can get it.
Thanks Tillerman! I've heard keeping the traveler block down on the leeward corner is fast even in the light stuff. Back in the days .... you know those days, we would keep a reasonable tight traveler on a Laser but not so tight as to completely saw through the wood tiller (most of us still had pretty deep groves). Not a problem today with the low profile carbon jobs. Why on the Laser do you need to park the boom over the leeward edge of the transom ... even in light air? Europe dinghy, Finn, Classic Moth etc. are keeping the booms more centered in light air.
What's different about the Laser?
Things that make you go hmmm?