Consider myself a pretty good putter, but lately my stroke has gone astray. Figured to make a change. Took my Newport 2 Notchback Select 35" 15gr Midsize Scotty Grip out of the bag and inserted my older model Studio Style Newport 2 303 GSS 35" 330grm 1.0 Super Stroke Grip in the bag and my buddies asked me to please take it out....what an improvement....more on line and more birdies......three birdies and an eagle.....first day out.....guess it will stay there for a while....always used a plumber neck shaft until this new notchback......if this trend continues might have to stay with the older model Scotty.......