TO get the putter to launch the ball correctly it is widely accepted that you want some degree of rise angle on the putter head, so the attack angle is slightly up on the ball to get it rolling earlier.
This will help the ball track on the line you have chosen.You can achieve this by trying to raise your left shoulder more aggressively through impact – but when you do this your head tends to tip backwards on the downstroke, causing inconsistencies.

