Same here Pedro, my usual film is Portra 160/400/NC/VC with a little Fuji 160s and 400h thrown in. Got my first rolls shot this week with Ektar in my Mamiya 7 and just scanned them with my Imacon and i'm very impressed, unbelievably grain free and lovely colour! for certain work this will be an amazing combination. Mamiya 7 with Ektar is as grain free in my Imacon as 5x4 with 400NC.
Gary.