That layout goes against usual touch typing rules.<p><a href="https:&#x2F;&#x2F;upload.wikimedia.org&#x2F;wikipedia&#x2F;commons&#x2F;thumb&#x2F;2&#x2F;29&#x2F;Touch_typing.svg&#x2F;790px-Touch_typing.svg.png" rel="nofollow">https:&#x2F;&#x2F;upload.wikimedia.org&#x2F;wikipedia&#x2F;commons&#x2F;thumb&#x2F;2&#x2F;29&#x2F;To...</a><p>As you can see the rule for the left index finger is: 4 R F V, but the keyboard you posted suggests a layout: 6 T F C<p>The latter layout look appealing, and I wonder why is touch typing using the former rule, since it makes both right and left hand move on a right diagonal instead of right-right, left-left.<p>At a first glance none of them has any visible advantage.