2 Knight Trainers can be connected, each with its own shot setup and frequency. Difficulty can be increased by making shots tighter and/or adjusting the shot frequency.

In the first example, the lead unit is playing clears to the backhand corner while the 2nd unit plays loose returns to the net. In the second routine, the lead Knight Trainer is feeding drop shots and
the 2nd unit is clearing from the net.


and/or adjusting the intervals (less info)