Made a new blog post about getting the most out of your expression pedal. It covers the basics, as well as some cools tricks like using an expression pedal to slide from one tone setting to another on your amp or effects, just like studio automation.
http://blackaddr.com/2017/02/10/expression-pedals-way-more-than-just-a-wah/ (http://blackaddr.com/2017/02/10/expression-pedals-way-more-than-just-a-wah/)
Hope you find it interesting.
(http://blackaddr.com/wp/wp-content/uploads/2017/02/titleshot.jpg)