patch test and gentlelase settings

well I went and got a patch test today on my chest and shoulder with a Gentlelase machine at setting 18 with the 18mm head. I assume the 18 was for Kj.I was suprised at the lack of pain. The chest barely felt like anything. The shoulder had slight discomfort . weird thing was felt the pain about a second after the light.The technician said that shoulder would hurt more becasue the bone was closer to the skin surface? I was expecting it to hurt alot more from what I read on here. My skins looks fine several hours later; slightly red maybe; looked the same right after the patch test too. I had a bit of electrolysis done with thermal apilus machine on high settings and that hurt way more.It was probably too high as I had scabs for over a week. So does that mean I just tell them to use 19 or 20 setting when I go to get treatments done?

18J on 18mm is a fine setting. The next one would be max at 20J on 18mm. Is the hair dense and coarse where they did the spot treatment? It definitely hurts a lot more than electrolysis if that’s the case.