Looking throught the posts again the only other thing not mentioned is inaccurate exposure but a fabulous Contax would seem to rule that one out. As a last resort it may be worth checking with another camera or meter. I realise this sounds as if it may be insulting Bob's intelligence. I know nothing about Contax cameras but would assume that if it shows exposure readings Bob's knowledge would have ruled out not spotting exposures that were way out.
Originally Posted by Photo Engineer
I am out of ideas except to endorse Ed's comment that a wet darkroom print is the key. If that's fine then the C41 problem is solved as it doesn't exist.
If you can find a mini-lab in your area then speaking nicely to the manager who hopefully is a photgraphic buff will get you a print for a reasonable price and quickly.