Suction pressure between 80 and 72?

As in the needle keeps moving, or it was some where between and you don't remmember what it was.

Type of metering device
indoor wetbulb, and dry
outdoor drybulb
suction line pressure and temp
liquid line pressure and temp
mod and serial numbers.
air flow?
coil delta
compressor amp draw
was a vacuum pulled when you installed it
how long is the line set
how much gas did you put in