Aguila or Seymour Duncan upgrade

I have a sterling sub that im looking to upgrade.

Im looking at either the Aguila AG4M or the Seymour Duncan SMB4D.

Juat wondered if anyone had any pros or cons on either before i pull the trigger.

It will be wired to the stock pots.

Also any tips on soldiering. Ive taken the the control plate off and looks like id have to solder back to a computer chip on one of the pots.