A problem with controllers using the organ "short-throw" triggering has been 'key bounce'...

Some controllers (and the Korg CX3[new]) have a tendency to double trigger as they are hit, go down to the bottom of the travel, then, as they return to rest they 'bounce' just a bit. With the trigger point for the note on being SO close to the top, that bounce can often trigger an unwanted note. It is so short you often can't hear it well while you play, but in a MIDI editor it is a nightmare to remove, and it is chewing up your polyphony, especially if you use a VSTi like B4.

Just something to watch out for....
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An arranger is just a tool. What matters is what you build with it..!