You don't just shim it out,you put the cards in the front or back to move the pins in or out.

If you need to move the pins in,put the shim in front of the mounting screws.


If you need to move the pins out,put the shims behind the mounting screws.


Yes,the same applies for hunting but most risers are square enough to get the bar and arrow running parralel with each other and just use a 2nd axis level.You are notneeding to hit a 1" circle at 40 yards to kill a deer.If it makes you feel better,then by all means get the 3rd set for hunting.Mine is very close but probablynot perfect.