Question: how to use evh d tuna?
Answer: Installing the EVH D-tuna. [00:01]
unlock nut. [00:11]
completely slack the string. [00:18]
completely loosen thumbscrew. [00:25]
remove string from saddle and remove lock screw from bridge. [00:33]
replace original lock screw with the D-tuna assembly in the OUT position ("D") [01:08]
lock nut with the "E" string tuned to "D" [01:47]