Thick curly hairs, even when well treated still have to come out, and they are usually coming out from a cork screw shaped follicle, or some other curved follicle. The anchor system must not only be pulled into the hair shaft, but the solid curved bulb systeme must round the turn or spiral and come out intact.
This brings us back to the distinction between a little tug followed by the solid bulb system coming out with a pop, and a full on pluck that feels the same as when you yank out a hair on your own. If you feel the first, relax, if you feel the second, put your money away and run to the next consultation.
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Setting a goal is not the main thing. It is deciding how you will go about achieving it and staying with that plan. --- Tom Landry