Kickdown adjustment 6r80 Voodoo swap

Working on tuning my voodoo and 6r80 swap. This issue that I?m having is that the voodoo likes to vibrate at low rpm which makes passing people somewhat annoying if the engine is at low rpm. I?d like to adjust it so that the engine will drop a gear with less throttle input. I haven?t messed with 6r80 tuning much. From looking at the throttle position vs oss table would I just raise the oss values for all the given throttle positions or is there something else I should be looking at?

Also if anyone has a way of tuning around some of the vibration caused by the FPC I?m all ears haha

Bring the OSS on your downshift tables up, I have found the sweet spot on the first few rows is 50 OSS less than the next upshift. So if your going into 6th gear at an OSS of 1700 for example, your downshift into 5th gear table would start at 1650. And so on. Some guys even go as close at 10 OSS lower.