I made a plate, that is fitted in between the stem face plate and stem. The factory noodle was then inserted in a hole made in the center of the plate.
BMANX is right, no risers. For the gear I have it is the only way to get the reach close to where I want it without having the stack way too high. Maybe one of these years Felt can come out with the zero rise stems, but I am not holding my breath.