I was simply offering a cheap shadetree alternative, and I got attacked on all fronts. This method works for me, and only requires 8 bucks and about 20 minutes of effort. If anyone else would rather pay $75 or more (I have no idea how much this actually costs) to have their system pressure tested go right ahead. But to suggest you are doing something illegal or harmful to the system by putting a can of R134A into it is simply silly.

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280