yea same. i put whiteout mark on the circular cover with the 4 holes corresponding to where the mark is on the sprocket. just make sure u put the matching cover on the correct upper/lower sprocket
if my memory serves,
upper bs sprocket should be lined up about the 1oclock area. it matches up with the upper bs nose, there's a stamp of a triangular symbol on the base. wish i had a picture of it.
lower bs sprocket should be lined up around the 5oclock area