So I replaced the whipers, cleaned the wiper scraper, did a full head cheap for dust, hair etc, manual cleaning and it's still giving me the damn spots in the red. It looks like it only happens in red (spot color 43K.)
I whiped down the vinyl before printing (Oracal 3165) and printed a full set of red bands across the vinyl hoping there would be 1 good. No chance. Random spots like these from the beginning till the end.
I also have the feeling that the inkt is layer down much havier than it used to be. On all vinyls, profiles and settings.
The black head will be replaced within a couple of weeks due to some minor deflecting that is annoying me with printing small labels.