First off... Ive been playing slap for a while now, and im doing pretty good, previously I had been playing with a pick for like 7 years... i got sucked into punk rock and Matt Freeman style bass. Anyways, a buddy of mine sais I should learn Double Slap which is using ur thumb, and then your pinky? I have been trying to do this but I am getting no result... I have been looking on the forums,and all I found which is Double Thumping, which even confuses me more!!! Is there such thing as double Slap?