John, your motor is not working the way it should! What does Reliable say about it?
I use a different kind of servo motor
on my machine - it has a needle positioner. The positioner allows the motor to know where the needle is in its stroke. I almost never touch the hand wheel on my motor. The treadle has another position called "heel down". Toe-Down sews as usual. Heel-Down raises the needle to the top of its stroke so you can remove your work piece. The other thing this type of system does whenever you stop sewing the needle is in the full down position. Always.
The motor has full torque at all speeds. I think the motor was worth the additional expense.