For all those who have sent a cartridge out to be retipped and endured weeks or months of waiting for it to be returned, I would highly recommend the services of Andy Kim at Needle Clinic.
Two weeks ago I broke the cantilever of my Rega Apheta 3 and got in touch with Andy, whose name I recalled from one of the audio forums I've read.
Andy wrote he could repair it in one day, and replace the cantilever with a boron cantilever that would significantly upgrade the cartridge.
So I sent the cartridge 2-day UPS from NJ to Cali on a Tuesday.
True to his word, Andy received the cartridge on Thursday, repaired and mailed it the same day via USPS 2-day Priority, and I had in my hands on Saturday.
It sounds fabulous, and quite obviously better than it was before I sent it
to Andy. The soundstage is much larger, as is the detail, treble, midrange and bass, which is waaay deeper than it was. And the cantilever is brand new.
All-in-all, and very satisfying and amazing experience.