How do I best go about choosing a decent sized harness-line for my handles?
Is there some rule of thumb (multiply the length of your forearm by 2, subtract the girth of your thigh, then sacrifice a virgin for the best size...) that means I can pick a decent sized harness line that's close to the optimum for me (6' 5" tall, long arms/legs, too fat if I'm honest) - I've played on handles, I've windsurfed on a harness, I know how important size can be, just don't want to make/buy three sizes if I can get it about right the first time around