I just got my 348 and before I purchased the PO had the seats redyed. They are pretty hard now. I have tried Lexol conditioner and it helped but not too much. I now got some Leatherique Rejuvenating Oil and I have heard that this will get it fairly soft again. Now my question is what is the best way to use it? I have heard about putting plastic bags over it but are there other ways. Can I do a little at a time? Thanks.