every cartridge will be slightly different heighth. set the grado initially parallel (90) degrees to the record, regardless of heighth. Then if you want to try lowering the back of the cartridge a little to increase bass or change the balance experiment by ear. This tonearm does have a post which can be raised or lowered? Good luck. Not familiar with the vinyl engine download. But after getting the 90 deg, make sure cartridgge is as close to possible lined up to be parallel to the grooves at the 2 points on the record along the needles arc.
This is just to get started.
This is just to get started.