I've spent several years working up Paganini's Capriccio #6 for the violin on the guitar and I wonder if the idea already exists and has a name.
For the violin, the piece is a coninuous double-stop trill (tremolo) in 64th-note dodecatuplets (12-lets of three 4-note figures). But the scale of the guitar is such that the two notes of the trill line are too spread out to do a hammer-on/pull-off series with any expectation of grace or style.
So I split the trill across two strings and do a p-i-p-m right-hand pattern where the second thumb is more like tonguing a clarinet reed than a real pluck. This allows me to perform the 4-note figure as a single motion (after much practice). The melody I play with a or p (if it's on a lower string - paying respect to the double-stops in the original).
In the Dover edition, adagio is in parentheses. I've been able to get it up to 50 bpm. If I can get to larghetto, I'll be happy.
Here's an image of the theme from http://www.everynote.com/violin.show/3828.music