How I got the Clark Griswold Machine to work was to add the anti-reset cap like you do for an Arduino as ISP. You initialize the connection first (I use the IDE serial window) then open the bash shell. Then, I can merrily code light show shell scripts. Note that a 4.7uF cap works for this as good as the 10uF cap.
By the way, I gave up on the Leonardos.