Hope this helps somebody.
We just put a "new" JDM motor/Trans/front differential/Xfer case in my daughters 98 pathfinder a few weeks ago. I replaced all seals, gaskets, etc in each piece. I replaced both Idler pulleys and the fan clutch with new ones I then decided to replace her AC comp/ Expansion valve, dryer, etc. I recharged her AC by wieghing in the exact charge. Her AC was OK driving around town, not bad, not great @ around 80-90 degrees. I purchased some 1/2" rubber HVAC pipe insulation from Lowes for less than $6.00. It comes in 6 foot lengths. I cut it in half, right down the center so I had two 6' pieces. I installed/stuffed it around the outer edge/gap between the radiator and condenser, the top, and both sides. This directs more air thru the condenser at low rpm's, like when it's needed while driving around town.
I wish I measured the before/after evaporator temp when I did this, but by seat of the pants feelings, it is MUCH better.
My daughter said, "MY AC is Kicking." She told me tonight that her friend stated, "your AC is colder, did you do something to it?"
I'll let you know how it works around town in the upper nineties.