Annika said...
That stance link from Leech shows what I meant pretty well. It's quite common if you use shorter lines to bend your knees and arms and crouch down into the harness. Although this gets your weight in the harness you are often forcing things too much, leaning the rig over and killing some of the power. It's harder work as well.
You should be leaning out more than down... this still gives you a lot of control of the sail (more infact as you use the weight of your upper body as well).
Next time your out in lighter winds try focus on getting the rig as upright as possible by lengthening your arms and legs and putting your shoulder back..
I have been concentrating on standing more upright & keeping the sail upright.Leaning out rather than down explains it well. I get overpowered /tired easily so then go into the squat & hang off like a sack of spuds ..not pretty but it keeps me out sailing a bit longer



..I was thinking longer lines would encourage you to pull the sail over on you but I suppose you just let it hang the weight of it to leeward a bit ( mast forward..whatever Guy cribb says) instead..& you lean out & back..