I seem to have a circularity error with my CP-01, circular prints (such as cylinders) there seems to be 'flat spots' at 2 directly opposite points on the print (very slightly egg shaped).
Is there any way of 'tuning' this out and if so how, please?
TIA

What slicing software are you using?
Have you tried reducing the extruder feed speed in small increments until it looks better?
Also, you may have the head temperature set too high again, try reducing this in 2 or 5 degree increments to see what happens.
Try a mix of 40% PVA glue to 30% water , since using this, i have to virtually 'hack' the component off of the bed - it isn't coming off during the print cycle, that's for sure!
Bed levelling is crucial, something that needs to be checked before each print job (ideally).

I seem to have a circularity error with my CP-01, circular prints (such as cylinders) there seems to be 'flat spots' at 2 directly opposite points on the print (very slightly egg shaped).
Is there any way of 'tuning' this out and if so how, please?
TIA

Could an E-Stop switch be installed to interface into the axis limit switches, cutting the supply to the motors (effectively triggering all 3 limit switches simultaneously)?
I know it's crude, but rather that, than driving your machine into the bed/component!