i have ritek f1, sony d21, and mcc004 scans which dont show this jitter. however most were either burned with benq or klon eohtIII firmware.
ritekf1 - constant 9’s
sony d21 - ranges from 8’s to high 9’s
mcc004 - mostly all in the 8’s a few mid to high 7’s
edit// i guess this drive/firmware/mid just dont like 6x.
might try playing around with different firmwares to see the effect. but i just really like the pie, pifs of this combo.
i get better results from MCC 004 with Benq DW2000 9B3E.stock firmware at 6x.