dksnyder, if you think the angle looks excessive double check it by measuring from the fuselage center line at the tail to the tips of the prop with the prop level. With a bit of trigonometry, drawing the triangle in CAD or some other method you should be able to double check the angle.

In the end we set our thrust lines to what we think is needed. But nothing stops us from shimming in a little more or a little less depending on what the model does in flight. So try the model as it comes and if the model seems to roll or pull too strongly to the right then try shims to remove some of the side thrust.