Changing timing steps on a Schulze future:

1. Turn on the radio and connect everything but the batteries.

2. Pull throttle and then connect batteries. No beeps.

3. Wait for about 10s: you hear a short beep.

4. Immediately release throttle: you hear a short beep.

5. Immediately pull throttle again. The controller will start beeping with single beeps, aprox. 1s between them. Count the beeps, they are the modes. Release throttle after the desired number of beeps.

6. After a short while the controller will beep the mode you choosed (short time between beeps). In some cases depending on the controller you need to wait for 1 more beep .You can now run or shut the controller off. The mode is stored.

Timing modes:

Mode 1: hot timing for 4 or more pole motors (Plettenberg brushless).

Mode 2: mild timing for 4 or more pole motors (Plettenberg brushless).

Mode 3: hot timing for 2 pole motors (Hacker, Lehner, Kontronik Fun,...), very mild for 4 or more pole motors.

Mode 4: opimized timing for 2 pole motors (Hacker, Lehner, Kontronik Fun,...). Comparable to Kontronik 3SL fixed timing.

Mode 5: soft timing for 2 pole motors (Hacker, Lehner, Kontronik Fun,...).

Mode 6: very soft timing for 2 pole motors (Hacker, Lehner, Kontronik Fun,...).

The lower the mode number the higher the rpm. Dick, I don't know what works better for sprint racing. Depending on the boat, the motor and the prop you might need to do your own tests.