weird - perhaps it's down to different brands of petg.

Tried colorfab and esun so far - esun definitely less stringy.
It also sticks better to the printbite and didn't show any sign of warp (shrinkage) whichthe coorfabb does a wee bit.

Got some real cheap stuff coming today or tomorrow: technologyoutlet petg.
£20 a kg !
See how that compares.