Help! I think I got em! In that delicate crouch/leg junction on the right side only.

My question is, and I know this sounds odd, are they caused by the bicycle seat or my seat? I have on trial a Terry Butterfly saddle and it has been great. It has elimated the 20 mile numbness and over all feels good. So could the saddle sores simple be the effects of riding more miles on a new bike and in a different position? Or the style of the seat? Or is it adjustment? I know I'm still slipping foward abit and an still working out the adjustment issues. Any suggestion? bikerHen