I would be interested in knowing what your Fitzpatrick skin type is.
10J would indicate that your skin is darker.
If you are light skinned, then I don’t know why 10J was used.
Also, since your abdomen was treated, your tech. used a larger spot size, yes? Maybe an 18? In that case, the larger spot would require the lower J.
Pain? Well I don’t know if a higher J necessarily means more pain. Pulse duration and spot size and other factors need to be considered. What do you say RJC?
In any event, at this point, I still don’t think laser is the ideal treatment for unwanted hair but as long as one is going to be choosing laser, one might as well seek the laser that is most appropriate for their skin type and keeps the hair away the longest and most importantly of all, find a practitioner who knows what they are doing.