Normally, if arrows are left, move the rest in. Move it in the direction you want the arrow to go. If the nock is low, raise it. If higher, lower it. If left, move it right or reduce the thickness.
But before taking the rest off, try building it out first and see if it causes them to move further left or not. Most of the time I will use a vinyl black electrician tape which is much thicker than the standard tape. It might take few tries, but I think you will find a point where they are shooting where you are looking.
If that does not solve the problem, add weight to the tip (replace 150 with 175 or 200 gr). I suspect, bow is not center shot, but do not know. Your options are to add, or subtract from the rest thickness, and/or adding or subtracting weight. If nothing work, then it is time to try a different spine arrow.