I sent my '99 Parkerized Loaded model back to Springfield in late July because the front sight shot loose after about 300 rounds and the frame was wearing on the side of the slide spring tunnel.
I asked them, over the phone, to replace the front sight with a dovetail sight, refit the slide and give the whole thing a light carry bevel job (and refinish obviously). Well, they had it for 6 weeks (out of an estimated 5) and it took two weeks in shipping it back to me. Unfortunately for me, and the whole Country as it turned out, they gave it to FedEx on Sept. 10.
While all of the email or phone communications with Springfield were initiated by me, Deb Else at Customer Service could not have been nicer or more helpful. She answered every one of my emails in no more than one day.
Oh, and when the pistol got back, they had installed the dovetail front sight, blended beautifully into the radius of the slide top; installed a new Novak rear sight; refit the slide; put, IMHO, a perfect carry bevel on every edge that wasn't originally designed to have a large radius. By that I mean every edge is just broken with a perfectly consistent angle, the flat of which is just under 1mm - this included the barrel bushing, the edges of the hammer and the bottom of the grip frame.
I've got no complaints.