Not everyone needs to upgrade and most "racers" like the "1 wire" alt,but not me. I race my car on the weekends and use the electric fan between rounds and frequenty have to restart the car multiple times while in the staging lanes and run the fuel pump,ECU,ignition,fan,etc. A strong charging system really is a money maker.I don't haul a battery charger to the track as my car has a good one built in. Yes run the sense wire to a junction block or battery not the batt stud on the alt.