I just got my restored radiator cap back from Tim at Gen2 Restorations. Sent the cap out on December 18, received it back January 17. Tim texted me pics of the cap upon receipt and during various stages, and texted me with a tracking number prior to return shipment. Cap comes with a lifetime warranty. First pic is as received by Tim. It was a fairly decent cap to start with.

To my surprise, after disassembly and clean-up there ended up being a couple pinholes that needed filling. Tim soldered them up, which did not involve any extra charge. He did send me a message explaining that the repair would still be evident after plating, so I knew what to expect.

Here's the finished cap as received today.

Here's the cap Tim restored for my 67 Corvette:

https://live.staticflickr.com/65535/...c7995224_c.jpg
https://live.staticflickr.com/65535/...4756d8e8_c.jpg

Man, that is really a nice job!