I would try setting the printer so that this deformation is in a straight line running up a print. This will let you look at many instances at once. From what I've seen if it's an issue with the beginning of a layer, it will appear to come out of the inside of the print and there will be a very small gap behind it.
If the problem is with the completion of a line, it will appear as a bump that you should see forming as the layer finishes and usually doesn't have a gap, but this isn't always the case.
I played with the settings to minimize it as best I could, then I found a spot on the print where a single line wouldn't be as noticeable; and I set the slicer to start and stop there. It takes a bit of eyeballing with each print in order to optimize, but I've had good success with hiding the line.