Well, I wouldn't really call 10 a stiff blow. That's pretty light. Today I went out with my mom (total weight - about 280lbs) in similar winds... 10 gusting to 13 or so. I hardly down/out-hauled at all and we only got the hull out of the water a couple of times. You really need more wind than that, bro. If your telltales are flowing properly then that's all you can ask for.
Yes, having more mast rake will reduce overall boat power but you'll point a bit higher, so there's a tradeoff.