Universal MK1 adapter came in, here's a little comparison:
Here are some screenshots if you want a closer look:
(if you right click -> copy image address -> paste into browser and remove the "l" before the .png at the end of the URL you can see the full HD res)
VX1000 MK1
XA11 MK1 (fully zoomed out, cropped to 4:3)
XA11 MK1 (fully zoomed out, cropped to 4:3, scaled up to 115%)
XA11 MK1 (zoomed in-camera, cropped to 4:3)
GH5 Canon 8-15mm (anamorphic mode, fully zoomed out, scaled down to ~53%)
Definitely not ideal testing conditions, but when I've got some time I'll do a proper skating one - first impressions are pretty good!