These are great Jack. I've been toying with whether to try and work slap out as I'm always impressed when I see it being done. Really nicely broken down and easy to understand.
That double thumb pick thing is a damn tricky sod. I've never see that done before.
At one time I was trying to inject a little slapping into my playing
& actually was approached by one of the bass players I often gig
who felt it redundant .... Have never tried it again since then ..