-W is meaningless, you still have an -H device if you had one before. The -W is only there because Prox uses a -W device and thus uses -W firmware versions as his starting base.
With Prime installed I cant get the tablet to show as a mass storage device when I plug it into a PC.
The Tablet now shows itself as a W?
In order to get the device to show up, go to settings>storage and click on the three dots in the upper right corner. Then select either MTP or mass storage.