electric cooling fans

[A1971Blazer]

I'm running a 2 fan set up. The fans came with the Entropy swap radiator.
I first had 20 amp fuses and they would pop every time the fan kicked on.
I called Entropy to see what the amperage was and they recommended 40 amp.
I settled for 30 amp and they are sufficient with 12 gage wires, as the wires only run about 12-14 " long from the relay.
I wired the AC through the trinary switch to turn on fan 1 when the head pressure triggers the relay, and fan 1 through a separate relay for the engine temp trigger from the PCM.
Fan 2 is PCM triggered only when the engine temp calls for it.
At highway speed the fans hardly ever come on without the AC, and with the AC on, the fan will cycle as needed.
Fan 2 rarely comes on, unless I'm sitting still with the AC on.