Not budging on this are you...
In automotive air conditioning. .. load never stops unless the cabin is cool... sure in mild weather the temp would satisfy and drop out the compressor or reduce fan speed... but when it's hot and humid, the ac in the 123 or 126 never shuts off, unless the freeze switch is triggered or you stop the car.

cleaning the evaporator will certainly cool the cabin better...

but with r134, and temps in the sun over 96F, high humidity, and stop and go traffic... you better have the best condenser you can get.
If the system satisfies cabin temp, fine... but you have to agree... constant load, clean evap, high pressure and compressor stress...

low load is no problem for a compressor. They will run constantly if pressures stay low... bring up the heat transfer from the evap, and you are going to kill the compressor rapidly
Unless you get the condenser right.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!