Grading Scale

I noticed that utd has a differant grading scale than my old school that I went to. My old school was if you made an A you got a 4.0, if you made a B 3.0, if you made a C its a 2.0. Here at utd we use plus and minus system. I think this system is really good for the grade of a plus but they jew you when it comes to the minus. I dont think it is right to give a student below a 3.0 if they make a B minus. I think if a you get a B minus you should get a 3.0, if you make a B then it should be a 3.5, and if you make a B plus than you should get a 3.8 or 3.9.