If you don't mind me asking, which EO Tech did you get? I have the 552. I purchased my own after using one for a year in Iraq. Never had any problems with it, so knew it would work great at home. Product: 552 | L-3 EOTech Holographic Weapons Systems
IDPA style cardboard targets, metal target stands, and brown masking tape to cover the holes. I can shoot them up, score myself, then tape them up. I sometimes use blue painters tape to define a chest hit zone and a head hit zone (both about the size of a 3x5 card).