I used Andy many years ago, I had received a passel of modestly expensive cartridges that needed to be retipped. Andy did that quite economically for me, and I was able to bank roll the proceeds of selling refurbished Audioquests, Grado, Blue Point Specials, and purchase a couple of high performance cartridges.
At one point I came to the conclusion that finding a retipper that would mount a diamond on the factory cantilever is the way i wanted to proceed with my cartridge retips. So I looked at the various retippers who do this. Andy is not one of them. Whenever you remove a cantilever you have to use a stent of some sort to graft on the new cantilever. I certainly don't want the factory one chopped off to do this.
My choices these days are Expert Stylus or AllClear. I have used VAS and there are times he will do this, and other times not. Joseph Long is reported to be an excellent choice also.
AllClear has a similar take on the Denon 103. Chris thinks they are nicely made generators and wants to upgrade to a boron cantilever and micro-ridge diamond. Of course this does involve removing the aluminum cantilever. But in this case i believe he fits the boron cantilever inside the remaining aluminum cantilever that is attached to the armature. I would certainly give a hot rodded version a shot.