Ive checked the extruder and it is not loose.
I swapped back the original nozzle and have the same effect.
I have re calibrated the axis on the machine and re set the Z height to 0.2mm
Also tried rotating the the print 45deg


What I have noticed is that I need to back the Flow off to 70% on the first layer. Originally I would sometimes back it off to 90% (table changes after heat cycles and can be high on one side)


I would like to run through developing print parameters (mainly flowrate)
Do you have a good procedure or file to use to help develop?