Just a quick word, Zo, not saying it will work, but I got the MPS 2.1 upgrade “from any advanced product” a few years ago at JRR and while I didn’t have any advanced product the serial activated perfectly. Might still work, ya never know.
Arturia is sheer heaven in comparison to IK. Which makes Peter an angel or a devil, depending on your perspective. But in both guises his wages should be doubled indeed.