I thought the aprs software merely sends its software version number at the end of the string? while you enter the station type in vwsaprs it does not appear to send it. I thought the station type on your gladstone page was conveyed in the initial setup. Mine just say v8, cant see how that would be correlated to a wmr968 using VWS.
It would be interesting to see if you update your vwsaprs to see if you went from v6 to v8 or higher...
Andrew