Per manual 17.9.5 Adjusting Chase Rate with Tap Sync:
"To adjust the rate of a chase using Tap Sync, hold down the Choose key of the master the chase is attached to, while pressing the master's Go key repeatedly to the required beat. Hog 4 OS will learn the speed of the chase from you, in a minimum of two beats; after this, you can release the Choose key."
Per manual 17.9.5 Adjusting Chase Rate with Tap Sync:
"To adjust the rate of a chase using Tap Sync, hold down the Choose key of the master the chase is attached to, while pressing the master's Go key repeatedly to the required beat. Hog 4 OS will learn the speed of the chase from you, in a minimum of two beats; after this, you can release the Choose key."