If your ball action ( length, turn and your mark down the boards are being hit) then I'd suggest you first step forward 1/2 foot length.
Moving is correct, however, some people when they move can not or will not move the mark as well or they "over move" the mark. If you are putting the ball down and the movement is correct, you are comfortable there, then try to move forward a bit. If that is not comfortable for you, move left ( righty) or right (lefty) and repeat your shot, remember to move your mark as well.
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az guy aka: R & L Bowlers Pro
rlbowlerspro@cox.net
www.rlbowlerspro.com