Can somebody please tell me how to read the compass.There are just 4 short lines in between the degrees for example between 180 and 190 so how you guys read it?I was reading it like 181, 182,183 and 184 but looking at the manual I found out I was wrong and from where this .5 came from like 187.5,202.5,etc. Nobody has asked that question before so I don't feel very good about asking it but I will much appreciate the help