Learn to play rhythm harmonica like the old guys did and use it like the young guys do.
This fox chase rhythm is tricky to learn as it uses the 3 blow in a way that you probably don't think about but it allows you to breathe and sustain the groove for ever. The tongue is used to move - just a couple of millimetres - to give you great economy of movement.
We will also use the split 4 embouchure so I'll show you how it works.
I'll show you a track I recorded a while back that uses this fox chase as a basis for improvising.
I think every harmonica player should know about this style of playing.