Grove Disc Brake Conversion for Super Cub

[OpenCirrus619]

Folks,

Does anyone know if this modification has been installed on any Piper Cubs in EASA land (preferably UK)?

More info at: Grove Aircraft Company

The FAA STC is SA01704LA.

I've been reliably informed that it makes getting the paperwork in order a LOT easier if I can quote a mod. number from an existing installation.

Thanks

OC619