Gerrym5:
I know Peter well and have always found him (and his colleagues) to be very responsive and no BS. I want to point out that he is, at this point, the only person left doing high-end cartridge repair IN THE WORLD - I'm not talking about retipping, which he of course does, but the actual repair of damaged or broken cartridges - he is IT, the other four or five outfits that did this type of work all having shuttered in the last few years. The guy really is a "rocket scientist": he was a research scientist with IBM for many years, and he does factory service for darTZeel, Halcro, Gryphon, etc. - he's the real deal. Finally, he happens to be a lovely person who runs a charity devoted to the abolition of child labor.
I normally don't go to bat for hi-fi people, but Peter is a really impressive guy. With all the charlatans in this business selling 50 cent cork footers made for air conditioning units as "proprietary isolation devices that we designed to breath life, air and nuance into each one of your components" and charging a fortune for them, it's nice to have someone like Peter to deal with.