Glad you are liking the Pentax, i knew you would
As for the laser, as a sanity check you should check the aim at the centre mirror donut, then rotate the laser in the focuser and check again. Its likely to be out by some 5-10mm and you will have to collimate your collimator.
The distance error divided by 2 will be the actual collimation error once its doubled back on itself by primary mirror aiming.
One of the big differences between cheap and expensive lasers is the quality of that alignment from the factory.