Yeah, I just got those same boots a month ago and they are really stiff new. I just rode in them and they broke in and got soft after only 2 rides so I don't know how you feel about that but I would try it! I love the leather now though, it's very nice. If I were you, I wouldn't put anything on the inside but I'm not sure if it would hurt it or not. I just have sensitive skin and I would hate to have my leg rub on it and have a reaction to the chemicals! That would stink MAJORLY!
"Don't turn you disabilities into a crutch, turn them into legs and run with them"