Andrew,
I suppose I'm just used to light air. We're lucky to see more than 12 knots of breeze at Hueston Woods.
Yes in 12 knots you can single hand just about any cat... in 20... its like riding a bronco. I single handed my cat in 18-20 (mph) friday and sat... i need a massage... (but instead i will go out and sail again today).
Its only supposed to be around 10 knots today (since a front has come through) so i will get to rig my spinnaker... but even at 10 knots... after 30 minutes with it up... my hands will be cramping and hurt.... (I LOVE IT)
