to be honest im not sure what my hobbed bolt is... but all the belts look brand new. I cant seem to find out if its a machine issue or a setting issue. I tired changing filament to white and it still does it....
also I don't know if its the order of the layers its putting down. it does the inner shell (which always looks great) but when the motor slows down to do the outer shell it seem to delay in the extrusion. I tried going in to skeinforge and changing the "restart extra distance" from 0 to .1 and all that did was make it extrude more before doing the fist inner shell not the second.