Planar2 Channel Voltage Outputs Inconsistent

I picked up an Intellijel Planar2 and I noticed that in ABCD mode, there's a discrepancy in the voltage levels. For the ABC outputs, they all output unipolar 0V to ~10.2V, though the D output only goes from 0V to 9.3V. I exchanged it for another but noticed the same problem. Can anyone else confirm this for their units?

Could be slightly miscalibrated. Have you contacted Intellijel directly to see what their take on the problem might be?

Just posted to their forum, so yeah hopefully they'll get back there. Seems odd to me, though I definitely tried both auto and manual calibration. I don't believe the ABCD channels can be calibrated the same way as the XY, nothing I'd seen in the manual at least. I'd assumed they were all related but the XY calibration seems okay, -5V to 5V or 0V to 10V both directions

EDITED Sep 29th 2020, 19:16

Apparently this is expected within tolerance, just something to keep in mind for others

https://forum.intellijel.com/t/planar2-abcd-voltages-inconsistent-per-channel/2914/2?u=qdox