I am printing with petg that has a temp range of 230C to 250C. I am printing at 240C. The parts printed solid plastic are large mechanical parts, To get the printing to not drop large blobs of plastic I had to go down to 85% flow. That flow rate gives nice smooth layers. I still get slight stringing. The same parts printed with PLA I use 100% flow. Is this normal? Am I missing something?