"This I take issue with. If you measure subcool and superheat and know that you have liquid where you need liquid and vapor where you need vapor and have acceptable temperature out of the vents, you are legit"

The people who KNOW what subcool and superheat are.. and know how to determine that they have vapor/liquids at the proper places are NOT MY AUDIENCE... LOL

Those are PROS... with training... and PRO equipment.....

I am talking the the above average DIY who owns a Mercedes....and wants the leaste number of ways to mess it up... and for it to last as long as possible with normal tool investment... If I am wrong on this description of ' my audience' I hope they will stand up and Hollar.... LOL