The gate output is also too low, and that has to be amplified to trigger the 2600 (strange… they don't seem to have to do that on their demo vid!)
I've voided the warrantee by taking the back off and readjusting the scale trimmer. Luckily there is one, but at least it now outputs the correct 1V/Oct and I don't have to recalibrate my VCOs.

Apart from that, it's quite good.