CATEGORY: Large Mallet Putters
WE TESTED: 34", 35" lengths
KEY TECHNOLOGIES: The "RifleScope" alignment system helps with setup and aim.
DISTANCE CONTROL: Very consistent—solid strikes produce a smooth roll and automatic distance; testers tend to drain a lot of mid-length putts.
FEEL: One of the best at impact; the TPU insert is absolutely sublime; moderately soft, with a crisp, discernible click; excellent balance in a heavy head.
LOOK: The elegant black finish works well with bright white alignment lines along the flange to give the head a slimmer appearance; hide the red and white lines behind the center shaft and you’ll know you’re on the right track.
A couple of guys find the red-whitered visual cue to be a distraction; the head is too heavy for a few others; the face is too hot for one or two.
BOTTOM LINE: Fairly understated by large-mallet standards, the Si5 feels really good while delivering reliable distance and easy alignment.