This may sound dumb but I am not very knowledgeable of the guitar effect world. I have been an electronic technician all my life working in the oil industry. I was learning to play harp and thought I would make a delay pedal that would perform better for harp than the guitar delays on the market and from then on I just focused on simple analog circuits tuned for harmonica. It is a small market for sure but I enjoy blues harp so I am happy doing just this.