Spinshot Player User Manual page 13

HGHT is for adjusting the ball height from the lowest position of 1 to
the highest position of 50. If you set HGHT value to 0 (R), the
machine will shoot balls in a random vertical angle and also
random speed. FEED rate will freeze at 6.
After you program the values, press the SAVE button on the top right
corner. The machine will save the setting on the phone and also
download settings to your machine. The machine will switch directly
between drill modes after the user has saved their settings.
The user needs to understand that the serving wheels can speed up
faster than they can slow down. If the user wants to set quick shots
followed by slow shots, it is required to set at long feed intervals, to
give the machine more time to slow down, or input more speed
changes. Example #1 shot set at level 19, and the customer wants to
configure #2 shot at level 16. The user can set feed rate to a lower
level such as 4 which will then give 6 seconds for the machine to slow
down, or the user can set the #2 shot with a speed level of 1, which
will then make the ball machine slow down more quickly.