Opatience: It was not that I could not distinguish from the high and low side lines, I could not find the low side line. If you know this particular car engine, you know that the low side is tucked way down under and can only be reached with difficulty and a very thin arm!
I do appreciate ppl like you who spend time answering questions on sites such as this. However, I feel that no answer would have been more valuable to me personally so that another person may have shared the information I sought.
Do I think there is a reason that the low side port is so difficult to find? Do I think this is purposeful? My answer: yes I do. I think it has very little to do with safety and very much to do with encouraging business at the dealership service department.
To other readers: I do not require any additional assistance with my A/C.