If you look at these 2 pictures you'll see that the artist used the too thin calves on the pants complaint version on the skirts.
What I mentioned in the tribble feedback was that this fixes the skirt problem but he/she/artist needs to reduce the sides of the thighs. Possibly 1/3 to 1/2 the current thigh depth/side. The current leg bulk slider ranges on tribble is perfect but the sides of the thighs needs to be reduced.
Reducing the depth/sides on the thighs could also fix the too thin calves on the tight pants.
I agree that the thighs currently look too thick on Tribble, but the scaling issues with the other body parts also need to be fixed. For all we know, the excessive thigh thickness could be a side effect of the wider hips; that is, the hips are too wide in proportion to the knees, so the scaling of the thighs is off too.