Havent read the whole thread but ill just let you know what i do about them... to get hold of a new headset for a langster just get hold of your local specialized dealer and get them to phone specialized and order one, they are super cheap, specialized charge the shops about £10 so probably £20 for you. They fit in a kinda strange way, they have two press-fit metal bands that sit in the headtube that the seals and bearings sit on, the pressfit bits are a pain to get in and out but most shops will have the parktool headset expandy thing that can get them in and out, and then figuring out the spacers ect is pretty simple.
Havent read the whole thread but ill just let you know what i do about them... to get hold of a new headset for a langster just get hold of your local specialized dealer and get them to phone specialized and order one, they are super cheap, specialized charge the shops about £10 so probably £20 for you. They fit in a kinda strange way, they have two press-fit metal bands that sit in the headtube that the seals and bearings sit on, the pressfit bits are a pain to get in and out but most shops will have the parktool headset expandy thing that can get them in and out, and then figuring out the spacers ect is pretty simple.