Hi, everyone.    I bought Grenson fred V tan color boots. And I still didn't wear them due to heavy snow these days. I just tried them on inside. But this picture shows pretty old looking boots. :)  Yet, being worried about the dry weather and for the leather health, I put leather conditioner, shoe cream and polish them, etc.    Well the darken color change after using conditioner is pretty expectable and acceptable, BUT all of a sudden the...