You're right, they aren't the slimmest from the knee down. But I need a 36 because I have "humongous big" upper legs, as a certain Philadelphia goaltender might put it. The 34 was too tight in the upper block for me. These have been hemmed (I have shorter legs, too) but I'm considering getting them tapered a bit more.
I got my gunmetal rivets tapered slightly from the knee down. worked perfectly for me. i just picked up my french blue's and caramels from the orchard st. store this weekend (thanks matt!!! great to meet you) and will certainly do the same. it turned a great chino that was slightly roomy into the perfect fit for me.