IS the Proper technique being used ??

I am going in for my last session with the laser place. They WAY prefer to use the IPL side of the Coolglide Cutera laser, at least for the large area like legs.

She insisted using the ipl the first time and I just went with her strong conviction. She said it is advanced and not in the same class as what most people think of IPL and that the results have been great. Zero pain or side effects but I had decent shedding. Hair grew back.
The second treatment was with Apogee in another city .

3rd treatment, (second back home ) ,I covinced her and she used the yag side but seemed to rush. Zero pain etc . This time very little shedding and the hair all grew back.

My question is
concerns her technique when reluctantly using the yag head on my legs instead of the ipl. I am wondering if it is the technique that resulted in such poor results as i was told my settings are ok by Chris , Romeo. When she used the yag head she always seems to be moving. Doesnt the laser have to stay in one place to target that hair before moving on .?
Thanks for your adviceā€¦