if you use hhkb(http://farm4.staticflickr.com/3322/3599528588_ce3e08503f.jpg http://farm4.staticflickr.com/3322/3599528588_ce3e08503f.jpg) layout, it's rather c

if you use hhkb(http://farm4.staticflickr.com/3322/3599528588_ce3e08503f.jpg http://farm4.staticflickr.com/3322/3599528588_ce3e08503f.jpg) layout, it's rather convenient to use Ctrl as leader.