If you are going to use another boost controller , i think it's best to just use 1.
So if you are going to use the "manual" boost controller leave the AMAL valve disconnected.
Most on here will say it is best to keep using the amal valve and get it rejetted.
Got no idea what the best is , but i'm using a turbosmart boost T bleedvalve until i get the amal valve rejetted.