Butch says long putting is about staying loose and relaxed:
• Instead of jabbing at your putts, make a longer, slower stroke -- the power needed will come from the momentum of the putter.
• Create a little hinge going back, and let the wrist flatten through the strike. It'll help give those putts an extra push.
• On a stroke this long, it's only natural for the putter face to rotate close. Let it; forcing it open will lead to bad pushes.