I was asked if the Vex kits existed only on the module, and if they could be lost by reset etc, so maybe this will help:
The Vex kits are custom kits created by [url="http://www.vexpressionsltd.com/"][color=#0f72da]http://www.vexpressionsltd.com/[/color][/url] which change the kit entirely. Roland should be ashamed of themselves compared to the Vex stuff
They are files which load via any sysex, or, and I prefer it, VdrumLib (unfortunately that would need to be downloaded and paid for. I think it's about £15 [url="http://www.vdrumlib.com/download.html"][color=#0f72da]http://www.vdrumlib.com/download.html[/color][/url] ) which lets you mix and match with collections and/or your own, or preset kits.
The software is transferable, My lot will only work with a TD8 module.
It's different collections for different modules.
Hope this helps a bit.