Sorry to Hi-Jack, but.. What do you think of the quality of BilbyCNC??
I have not used their product yet and was going to grab a sample.
With the update of oval filament..

Last few rolls I purchased have been TERRIBLE (NOT from Bilby).

One roll was actually even larger than 3mm!!
Another roll (two actually) did not bond to itself...

Out of 6 rolls, 2 were good.