I've suggested trying to just use your first 2 fingers and a thumb and it makes it a lot easier to identify when you're out of trim and sometimes helps people be a little gentler on the controls.
Holding the controls that way also tells which way it is out of trim, i.e. nose up or nose down trim required.
Try it next time. You will also see how important it is to hold the attitude while trimming. Pressure on the thumb, nose down trim required. Pressure on the finger tips, nose up trim required.
And don't forget to get little pinky sticking out like you are drinking a cup tea with the Queen.