Yes I hate that line it drops in the beginning! Sometimes it won't completely break off and it will drag a trail of filament into the print. I've been standing there ready for it and grabbing it by hand off the extruder before it goes over to the bed. But it never occurred to me to see about changing the code. That would be most helpful. And save me from possible burns.

Other than that I've had good experience with it. If something needs supports you can't beat it. I had a piece where the design came with supports and when I removed them I tore half the wall off. So I removed the supports in blender and closed up the mesh (I'm still learning Blender so I won't tell you how stinkin long it look me to close that tiny hole!) then printed the piece using the automatically generated supports in S3d and they broke away clean like they'd never been there. Huge difference.