Risky
Cavatina and Argentina both work well on my Yammy -I've played them both Live.
The trick with Cavatina is NOT to go right up the board like Hank does but to revert back an octave where the high part should be.
Geronimo and Gonzales are also OK.
I take my Yammy on hols and lots of my BTs and there are not many that you cant play, one way or another, on your acoustic.
OUtside of the Shads, try Tears In Heaven, Now and Forever, Petite Fleur, Sunny afternoon, Dance with me, and also Faithful.
cheers
ian