What's better for slapping?

[Vinny_G]

Graham Central Station - Pow - YouTube
Larry Graham "Super Slapping Bass" 5 - YouTube
Which one do you like the most?
I know, the second one is painted so we don't know what wood it is. But if the inventor of slap does not care more is that this should not have a great importance, isn't it?

 

[Craig_S]

I think fingers touching and palm slightly cupped is best for slapping, myself.

It really doesn't matter. A great slap tone can be had either way.