How to tell if your technician is setting the machine correctly for your skin/hair? Lightsheer Duet on full beard.

I'm Fitzpatrick Type 2/3 with light tan. Hair is a mix of blonde (20%), red (40%), brown (40%), all very coarse & very dense. I know only the brown hairs will be removable with laser. The HS unit was fine but the ET tip was 9/10 pain, & the tech did 5 full passes with no break. No spot test was done & they never asked about pain. Very few hairs ejected during or since. I can't go elsewhere, it's 300mi away & the only place within 500mi. Was the pulse width and fluence set correctly?

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