Sorry for the late reply, I've just joined up today. We at J&S produce grinders so have experience in this.
Most CNC machines have software that compensates for wheel wear, and takes it into acount when dressing. The software also takes account of diamond wear, so that the wheel form can be...
There are numerous companies here in the UK with Jones & Shipman machines that can offer you a sub con service. Do you want to keep it in a specific region in the UK or will anywhere be ok? Are you looking for a company with any specific certifications or industry bias? If you give me some more...