When employing the technique of palm muting, we have to place this part of the hand [David points to the heel of the palm of his right hand] straight against the bridge of the guitar – just like that.[David demonstrates]
If your hand is too far back, no muting will occur whatsoever.[David demonstrates]
And, if your hand is too near the neck, it will be completely dead.[David demonstrates]
The hand needs to place straight down on the saddles and on the bridge – just like that [David demonstrates] – to create the clipped, tight, rhythm guitar effect.[David demonstrates]