APX3:Can a putter make a reasonable difference in my score?
Have you ever wondered why a perfectly struck putt on a good line just seems to wander off line? That's what balance in a putter fixes. IMO, the level 70 Versa would be a great upgrade for you. Same meter speed but way better attributes, particularly in the balance department.
Imagine trying to putt with a balsa wood putter-very light and easily deflected when swinging through the ball because there's no mass in it and it's hard to balance a feather. Replace that with a well balanced, evenly weighted putter and all you have to do is hold on, the putter just about swings itself. Then the putt will roll true and you won't be seeing it wander off the line.
Keep in mind, you're not buying putts with a new putter, just a decent piece of equipment to make them with. And don't expect miracles the first time out, it's going to take you a while to get comfortable with it but you will be rewarded. :-)