[tshirtguy2006]

I'm printing an oval logo with text inside and a slogan below for a local tire shop.When I print it the white underbase prints jagged and outside the color layer edge. I have print prefs set to color layer - auto mask, black 100% cotton shirt. If I make a oval and print as white ink layer it prints smooth and fine. does anyone know what I am doing wrong?
thanks
tshirtguy2006