Chris Ireland at Direct Digital Imaging in the UK arranged for my Wide DS and Shneider 24XL and 35XL lenses to be sent to Cambo for a service. The whole camera needed a bit of TLC and the lenses were producing some strange results - the 24 was soft on one side and the 35 was ghosting badly around highlights.
The service has transformed it - all the movements on the camera are smooth now (there was some play in the shift knobs before) and, most importantly, the lenses are producing perfect results. I am blown away by how much better the images are since the service.
So, if your Cambo is old or the lenses are a bit off, get it serviced - it's well worth it!