Geoffrey Barnes wrote:

I have no idea if 2 or 3 degress will make a difference.

Did you manage to get out of high school? Do you remember any of the math they
were supposed to teach you? You can use simple math to determine that your deviation
in a 20 mile leg is about 1/4 mile for each degree of variation from the proper
heading.

George Patterson
Love, n.: A form of temporary insanity afflicting the young. It is curable
either by marriage or by removal of the afflicted from the circumstances
under which he incurred the condition. It is sometimes fatal, but more
often to the physician than to the patient.