I love the keystone in Opto plastic. It flies great. More stable that all other keystones. It feels great, and can handle some torque for touch forehands. I hope they continue to produce these.
Keystone is my favorite putter. I tried others and I'm just not as confident with them so I wanted to get a few in the Opto plastic. I love the feel of it and my confidence is at a high level with these putters.
I love the opto keystone! Great feel in the hand, smooth and just the right amount on flex. It started out as my thrower but now it's my main putter. Straight and smooth every time!
To have the keystone in a throwing plastic is truly amazing, slightly more overstable than the zero plastics, but still a beautiful flight out of the box.
A few more of these may be in order.