I have a model that often suffers from some really nasty looking horizontal "tears" where it looks like some layers are not bonding correctly at the beginning of the outline perimeter. These occur in the same approximate area every time but I don't see any problems in my STL or gcode preview that would make me suspicious. Here's a photo of what I'm getting when things go really bad, but on the best prints there is always at least a trace of a line here.
Any advice on things to try to remedy this? I've checked my mesh in a few different apps and even tried smoothing the detail in this area a bit to be safe, but the problem persists.