First you say that you don't get penalty pay and now you say that it doesn't solve the problem? Have you even filed a 9.5 grievance? When you force the company to pay penalties over a period of time, they will adjust your dispatch. UPS only cares about costs. You may get ridden and you may have to learn how to do the job by the book if you do not already. But, so what??
It sounds like you just won't fight for your contractual rights. UPS knows that most drivers will not, this is why you are treated as you are.