As I can't afford the J.W. Speaker Adaptive Headlight & GRiSO Adapter (euro 859,- & 169,-), I probably have to resort to some other i.e. cheaper way to get a better illumination. And I do like the looks of the OEM headlight anyway.
Do Grisos circulate their headlight current through the light switch in the same way Guzzi done it with the V11? And could one then draw new wiring directly fromm the battery to relays inside the headlight shell and use the switch circuit to control the relay. That made a big difference in light intensity on the V11.