Perfect your putting stroke with this training aid and putting kit

inline putter training

Getting the ball started on the proper line is the key to great putting, and the SlingShot iNLine training aid can help you.

Ryan Barath/GOLF

Being a great putter comes down to two simple principles: being able to read greens and getting the ball started on the proper line with the right amount of speed. After impact, gravity and friction do the rest, so it’s best to make sure you’re getting the ball headed in the right direction.

That’s where the Golf SlingShot iNLine and Lights-Out putter training system comes into play, to help you tune your stroke to get the ball started where you’re aimed and to make sure you are hitting it at the right speed. Here’s what you need to know.

iNLine

inline putter aid setup
Demonstrating the iNLine in use. Golf SlingShot

The key to the iNLine’s design is the adjustable gate for both the putter head and the ball, along with how the ball sits inside of the alignment tool unlike mirrors or other putting training platforms where everything sits on top of a simple platform above the green’s surface.

prototype inline
A prototype iNLine at the Shriners Children’s Open in Las Vegas. Ryan Barath

This keeps the ball and putter head resting on the actual green before the stroke is made, and with the back of the iNLine sitting slightly above the putting surface it promotes instant feedback and a positive angle of attack into the ball, which is ideal to get forward roll.

inline training putter stroke
The iNLine putting kit with the protective case. Ryan Barath

Lights-Out

The second part of the training system is the putting target, which is also extremely helpful when you’re trying to work on your putting but either don’t have a proper hole to practice to or you’re just working inside on a putting mat.

The putt lights out training aid
The Lights-Out trainer and game. Ryan Barath

The target is the same size as a normal golf hole and has raised edges that have been precision milled to help ingrain proper pacing for the ball to hole out. When using it on a putting green it can be easily held in place with a golf tee, so if you’re in a pinch to work on your speed it’s a great tool to have in your bag.

Having tested this both inside and out, I fully admit that the Lights-Out is one of the most fun (and also most frustrating) training aids I have ever used — and I mean that in a good way. Scoring a point is the easy part, but getting the ball to stay in the target requires an extreme focus on speed, which when practicing on a real putting surface helps to narrow focus so when you do move to a regular hole, it makes it feel a lot easier to hole putts. That’s the whole point.

More from Golf SlingShot

sling shot swing trainer
The Golf SlingShot tour issue and phantom models. Ryan Barath/GOLF

Beyond the putter training system, anyone that is familiar with the SlingShot is more likely familiar with the multi-material SlingShot swing training, which helps with speed training and tempo.

Just like with the short-game tools, the full swing trainer is manufactured using only the highest quality materials to ensure lost lasting performance, including a full carbon fiber upper shaft, a polycarbonate “kick” area, ceramic bearings, and steel alloy magnets.

It comes in a number of options, including a full carbon fiber Phantom model specifically designed for speed training.

Want to overhaul your bag for 2023? Find a fitting location near you at GOLF’s affiliate company True Spec Golf. For more of the newest gear news and information, check out our latest Fully Equipped podcast below.

Ryan Barath

Golf.com Editor

Ryan Barath is GOLF Magazine and GOLF.com’s senior editor for equipment. He has an extensive club-fitting and -building background with more than 20 years of experience working with golfers of all skill levels, including PGA Tour players. Before joining the staff, he was the lead content strategist for Tour Experience Golf, in Toronto, Canada.