Could be your saddle also... I used to get that soreness in the leg crease until I went to a saddle with a narrower nose. And when you are on the saddle are you sitting up on your sit bones? If you are laid out a little too much you could be inviting some soft tissue soreness. Chamois cream could also help.
Sorry, but soreness could be a few things - I have several different types of chamois and none of them bother me as long as I have a narrow nose on my saddle and don't put my weight on my soft tissue.
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"I never made "Who's Who"- but sure as hell I made "What's That??..."