Mine is also pretty good, I added a brake lever extender pad which allowed more pressure and really helped
As for me, performance with M50 at 2012 multistrada 1200 increased dramatically. Even with common brake pads even without upgrading master cylinder. Also for M50 you could choose pads with different caracteristics even from Brembo. Hel lines, because angles of banjo connections are different. Maybe someday I'll try it with bigger rotors from 1260 pp and spacers, but with such set have to use 61810821A or another length of caliper-to-caliper line. Actual build:
