Picked up a Perfect Practice Putting Mat from ohksports.com. It is a great putting aid and i have found it really helps develop a solid consistent stroke. The markings on the surface help with alignment and gives you instant feedback as you take the head back. The concept is much like the drill pros use with taking the putter head back through two tees. Multiple markings including distance really help with practice. There are two holes a standard and a smaller than standard. After putting to the smaller hole the standard seems huge. It also has a very nice ball return system which helps keep the flow going when you are practicing. It is a quality product and it has really helped me with my stroke. Very satisfied with this putting aid and the quality of this product.