Can anyone give me a review of the new Hohner Slide harp #7312. Long ago I owned a Koch, but misplaced it and never put it to much use. Is this Slide Harp superior? How well does it bend, especially on holes #2 & 3. I prefer diatonic, but do play Chromatic for some songs. Does anyone out there find much use for a Koch or Slide Harp, which I assume is of similar construction? Thanks, ROB