DSF

Hi guys I'm new to sublimation but been in the vinyl industry for 25 years so I have some knowledge, I've been trying some mugs with the new machine but the quality just ain't rite, the bottom is not to bad but the further up you go it's more like ghosting, machine is set at 200 degrees and 8 minutes, any feedback would be welcome.

what printer , inks, press are you using? Also 8 mins seems a long time. Most people start at 180 degrees for 180 secs.