[bgolfing]

Question is in the context of swinging.
When I putt the whole putter tends to move back and I tend to flip at it to get back to the ball. When I concentrate on trying to keep the butt end of the putter still and pointing at my mid section thru the whole stroke, the flip is gone and the stroke is "lighter."
The problem is that I do not know how to keep the butt pointing consistently at my mid section. When I do it, it feels like the putter has to come up off the ground more and my left hand rolls under. This roll under feels like I am closong the puttter and not sure if correct. It also feels like I have to bend my wrists.
Am I correct in trying to keep the butt pointing at my mid section and, if so, am I going about it correctly? Any other thoughts appreciated.
BTW, I have the Putting Arc so using this as a guide would be great as well. Thanks!