Rough first layer

[AmbientG]

I just switch over from Makerware to Simplify3D and have been experiencing rough, wrinkled first layer with plastic crumbs on top. it looks like over extrusion but I am not sure how to adjust for it.

I am using:

Flashforge Creator Pro setting
Hatchbox ABS filament
.4mm nozzle and extrusion width
1.75mm diameter
1.05 g/cm3 filament density

And when I adjust the multiplier between .90 and 1.0, I did not see a difference or improvement(top of image 1.0 bottom 0.9). By the 3rd for 4th solid base layers, it smooths itself out and the print sticks fine.

Any suggestions will be appreciated.
Thanks!