Just confirming that upgrading from MPS 4 to 4.1 includes another Groove 3 pass. You also receive serial numbers for Nimbus and R4 reverbs (but I think those were already included with MPS 4, so I don't think there's an extra reverb as mentioned above, unless I'm mistaken). It also provides a new serial number for Melodyne Essential 5... and of course the RX 9 standard upgrade. Also, I asked, if you simply upgrade RX from 8 to 9 for $49, would that be recognized as upgrading to MPS 4.1, for futu