Too much arch in putting path

[Sandiegogo]

Like the title says, I have too much inside to inside movement with my putter.  I would like to have a less pronounced inside takeaway, and a more DTL forward swing.

Any drills to help with this?

[mvmac]

Try having the elbow more bent at set-up and check that the eyes are over the ball.  Might feel like your bending over more and like the shoulders are more shrugged.

[carpediem4300]

practice taking it straight back,......i usually watching the putter head on the practice swings and rotate my head to follow it to ensure im swinging dtl,...during the actually stroke i keep an eye on it out the corner of my eye but keep my head still over the ball

depends if your a mechanical player or feel player

the drill from mike above is very good for both

[Mr. Desmond]

First, you're standing to the side of the ball with  a stick that originates from a point that is to the side of the ball - so arc is inevitable.

I find a neutral setup - everything square - feet, knees, hips, shoulders, eyes, etc. with the grip setup so it is over the zipper (neutral) and the shaft straight up and down - is best for me. I have about a hands width between grip and body. I keep my lower body very quiet, and mainly use my shoulders to make the stroke - but if you turn your shoulders in a quick (short) arch, your putter will show lots of arc. Feel as if the shoulders turn wide and that should lessen the amount of arc - think WIDE