I always used a digitech drop pedal für going half step down and it was perfect. I sold it when i got the Kemper,though.
When i use Transpose now, i get a noticable latency.
Its slight, but you can feel the difference when you play. and therefore it doesn't get as tight as when transpose is off. It feels like a SUPER slow attack, and you can hear the pick hitting the string before a note comes out of the Kemper.
is there any way to dial the latency shorter?