Center shot bows do have some parallax effects. Much less than with a non-center shot bow but it is still there due to the inertia of the front of the arrow and the initial accelleration of the nock end. This causes the arrow to bend slightly. My advice would be for you to buy a sampler pack of different spined arrows and see what flies the best. I small investment to ensure good shooting. Better yet, if you have friends with wood arrows, borrow theirs or refletch their old shafts and try them out. Experiment! Dick