I was able to meet the control requirements for 4* by maxing all control melds on your pieces, +6 control on an HQ artisan offhand, and +10 control buff from FC. Would still need food to meet craftsmanship rating.

With all 3 (or two if using ixali smithing gloves) artisan body pieces, you can meet the 407 control requirement with +6 control on your offhand and no FC buff.