I beg to differ Will...the impetus doesn't need to be the partial capo itself.

Here's Randall Williams explaining a little more about how liberating and limitless the possibilities can be if you are prepared to spend a little time getting your head round some of the voicings. Here he explains what you can do using a 'partial' with the guitar already tuned in DADGAD

Partial capo tutorial


As Randall says...it's not for the faint of heart