After several stalled techniques, I may have found a steady fix. In my reading for tips though, I discovered a communication issue in one of your workflows. Or at least one I misunderstand. Regarding the GO process you recommend, in one sentence, to tape a leader. However, in another sentence, the instruction is to leave a bigger border at the top of the print.
Tonight, on my 7890, with a series of niche QTR settings and printer settings, leaving a 3 inch border, at the TOP of the sheet (not the feeding edge) yields good a GO process. But, I have to keep working this technique and hope it is the "real deal," in a solution.
On another note.... my colleague and I are loving 2 and/or three passes of GO! We've done this to just test the GO issue with the 7890, but have found out there's good look and feel with more than one GO pass. Would you suggest I just should adjust the GO output in a custom GO curve? I'm not techy enough to do this though!