Yep Josh does an excellent job. I just want more!
Right now two things are getting me, for example - tone and muting. For example, my tone slapping the D string (and to a lesser extent the G string) just sucks. Not sure why and I assume that will just get better with time but it’s probably a technique thing.
And muting while slapping - I am finding it tough. And there’s clearly some cool techniques to help - for example, in F Chopper Koga’s slap course she does this thing where she reaches over the A string and mutes the E string with her middle finger. I cannot do it at all consistently yet (I end up fretting the E string, which I usually mute with my thumb).
She also does this thing where she mutes the adjacent string with her slapping thumb after the slap that I totally cannot figure out yet.
It’s Japanese but it’s also the Universal Language of Bass you you should be able to see what I mean starting at 4:10 here:
I just cannot get a good slap tone if I try that thumb-muting thing.