Questionable putting aid?

[JustOne]

I'd be interested to know your thoughts on this device...
http://www.youtube.com/watch?v=qzG-XirFGjo
I normally have the sensation of the putter moving inside the line (on the way back) on putts over about 6/8 feet and this would appear to stop that. The backswing on these putts looks like a reasonable 5 inches.

 

[Herbie]

The clip shown looks more like somewhere in between a smooth stroke and a Tap and stop sort of putt. I sometimes revert to tapping rather than stroking and with some success, but as far as the aids go, I am not so sure, as they wont be with you in a match and you just have judgement and memory, like any method really? The methods that make you and your body remember have got to be the best though, I would assume?

To me, accuracy is only as good as your ability to read the green and pace, whilst using a well practiced putting style.

 

[haplesshacker]

I guess that for some it might give them a repeatable stroke, if that's what's missing at the moment.

As with all these things. It's an aid, not a life saver.

 

[RGDave]

I say save the cash and do 10 minutes a day along your skirting board. Then 15 minutes with a rail.....

 

[CrapHacker]

It looks like he takes it straight back with the putter head square, but allows the head to close naturally on the followthrough. I'd imagine it's a good drill / aid for short to mid length putts when you don't need a longer backswing.

I'd also imagine that he hits his putts with greater authority and acceleration than you and me, so he probably has a shorter backswing than most.