Moog Sub 37 Reaktor Pitch CV out block - Help!

Has anyone successfully calibrated the Moog Sub 37 with the pitch cv block? I have only gotten smaller ranges C1 to D4 for example. It seems to only start calibrating half way through the test. Using Presonus Studio 2|6 (dc coupled outs) and working in Reaktor standalone. My first time doing this so I'm a little green. A lot green. I'm thinking it has something to do with the pitch cv calibration in the Moog, but I'm not sure. I have at the default setting. I have output 3 of the Presonus connected to pitch cv and output 4 to the gate CV of the Moog Sub 37, and created the separate outs in Reaktor, and patched them accordingly.

 

I‘ve got the same problem, with the same patch, trying to do this with my moog mother 32 and presonus studio 1810, according to the following tutorial:
maybe this has something to do with the audio interface?

 

Problem partly solved: it works in standalone, but not inside the daw (ableton) - so far!

 

I ended up trading in my Studio 26 for a MOTU Ultralite Mk4 -- it was more expensive, but I'm glad I did it because it has a lot of outputs for expansion as I hope to acquire more hardware synths in the future (like a moog grandmother!). I found out that the voltage coming out of the 26 was only +/- 3.5 volts, which is why I was getting such a small range of pitch calibration (i think). The Sub, I'm told, requires +/- 5v at its CV inputs. With the Ultralite, I wasn't able to get the full range he's getting in the video, but I did manage to calibrate pitch to 5 octaves. I was able to get it working in standalone and in ableton. It seems so easy in the video- I wish there was more documentation for this process online somewhere! Let me know how you fare with your 1810, I'm interested in hearing how it's working for others.