I thought I replied earlier from my phone but it didnt go through, or if it did alteast I cant see it.
No offense taken. I am new to relatively new industrial machines, I am a hobbyist. Its def a servo motor, i installed it myself. My other machine singer 111w has a clutch. I can feather that and sew slow. Idk if its maybe my servo motor (its a cheaper amazon one) its either on or off, it reminds me of my old kx85 dirt bike. Even if I use my hand to control the motor actuator there is no adjusting the speed other then slowing the speed on the control panel. It isnt to fast on its lowest setting, but I would like to just have more control sometimes, like I can on my clutch motor slowly lower that needle.