Doing Diode 808 laser sessions.. Should I go 4 or 6 weeks apart?

I have completed 7 sessions with the Diode 808 Laser on the Brazilian area. Each at 4 weeks apart. Most of the hair is gone but I still need more sessions. I was considering wether I should the the 8th session in 6 wks (think it'll give better results?) or keep it at 4 weeks. Most of the hair left is in the middle more sensitieve area of female brazilian. It's almost 4 weeks and I have growth. I read that most people mention 6 weeks for bottom areas. I'd say about 80% is gone.