Thanks for your input. I have read other comments about the reliability of Fuji's list and wondered about their validity. I already have a dumb adapter, but may consider getting the Fuji M adapter anyway.
I have this lens and I'm not quite sure what you mean by roughness. My zoom ring is smooth through out the range, but it is ever so slightly, almost imperceptibly, tougher to turn as you get into the 24mm range.