Throughout his career he would go on to release many more instructional videos .
Around this time , Gilbert also recorded his first instructional video , Intense Rock , in which he demonstrated a number of his famous techniques and practice regimens in detail .
Throughout Gilbert 's career Gilbert would go on to release many more instructional videos .
Around this time , Gilbert also recorded his first instructional video , Intense Rock , in which he demonstrated a number of his famous techniques and practice regimens in detail .