Been a while since I was on. Has anyone seen this new pedal from TC Electronic called the Mimiq. Its a doubler pedal designed for metal guitarists to thicken up their sound in a similar way to double or triple tracking guitar parts.
This reminded me of how people like Carlos Del Junco use a very short slap back delay to thicken up the sound of their amplified harp tone.
Its not out until next week, but I'm going to get one to see how it works out. In the meantime, have a look at this vid. It is of guitar, but in a more bluesy setting harp players will identify with.