Not bashing the guy, but his L2 method is really not a unique invention. Many other "sidesaddle putter manufacturers" out there. All the same idea, and none of them can claim it really as an invention. Look at
Putt 68 Percent Better....Instantly! for example.
The only difference between his putter and mine is he has a custom head that's center shafted and bored at an angle. Mine is a standard head and two bends at the end to bring the shaft into the correct line.
My grip and action is exactly the same, just the left hand is higher up (more near the armpit, because that's more stable for me.
The L2 seems like a lot of marketing baloney for a relatively simple product.
Btw, my putter cost me exactly:
Grip: $12
Shaft: $10
Head: $15
Putting like a madman: Priceless