Ikeda 9tt retipping

I would like to retip my beloved Ikede 9tt cartridge because the diamond is worned out. I was thinking about change only the diamond, not the cantilever. I am talking with AnaMightySound. They would change the cantilever also, because it`s difficult to attach only the diamond, but they are always trying to replicate the original sound as they say. 

Would you recommend to do the repair with them, change the cantilever and the diamand or try to find an other service? The cartridge is not damaged only the diamond is worned out.

Who would you recommend? I am located in Norway, would be nice in europe, but I guess I have to send it anyway.