OK.

Mine HS2 from the kickback was only hitting the hole about 2/10 times....From a bit of research it should technically hit it every time (9/10 acceptable).

On the left hand side, remove the plastic which sits above the targets...Just slightly loosen the screws (2 or 3 in total - one hidden by ramp) and remove the nut..

Gently slide plastic out.  First, ensure that the post has a rubber on it.  It does seem to make a difference.  Also you'll see a screw.  There is virtually no room for adjustment but mine was always hitting the black post (or yellow on yours if correct).  I just tweeked it back to the left a touch, and now getting 10/10 from kickback.

Attached a couple of pics...Second one is exact angle of mine..