Hi mate. Hope you're enjoying the bike.
The mc is the original. I had it swapped with a brembo radial, but put it back to standard before selling. Have you tried to rebleed it?
the brembo was good, but mine had an issue with seals, it lost slowly pressure when feathering the lever.
you must get the smaller though, 16/18 I think it was. They use the same on single disk ducati monsters and is quite popular with the supermoto crowd. Although, if I had had the cash I would have replaced it with an isr lever instead.