Ok this is different than a previous thread. I don't mean bring the thumb up over the neck, I mean bring the whole hand over the fretboard and fretting a note with the thumb (like playing piano) I was learning to play Portrait of Tracy and the D# false harmonic in the beginning I just CAN'T reach (thats too much of a stretch) so I thought of fretting the D# with my thumb and playing the harmonic with my pinky. Does anyone do this? Actually I stopped doing this during the song because I couldn't get my hand there quick enough, so now I just play the D# up at the 11th fret, but I thought it still might be a useful technique. Any comments?