I have a Vokey Design, Spin Milled (SM4 with white SM logo), 54-11 wedge (with BV logo). I have no idea how old it is or if it conforms to the USGA groove rules. I checked on the USGA conformance website but could not locate the wedge out of the 600+ Titleist wedges that are there. I also tried looking up the serial number (3700642) online with no luck. Any guidance here would be appreciated.