(Filmed on a mobile – sorry for the audio!)
I love putting one handed.
A huge bonus of this drill is the degree to which it makes you aware of arm and hand tension in your stroke.
The best putters of all time state how relaxed the putter is in their hands, even during high pressure moments.
Without a nice relaxed grip on the putter, your stroke will be poor with the one hand drill.
Check out a previous article I did on this drill here.