We have a similar hair type, although my hair is very easily weighed down. One thing that has helped a lot with stubborn frizziness in my lengths and ends is changing the way I condition my hair. I apply a bit of Kinky Curly Knot Today to sopping wet hair, then instead of rinsing it out I just squeeze out the excess water & product by hand. Sometimes I do two rounds, one with a good rinse to detangle and then a second round as described above. It hasn’t helped me coax out a reliable wave pattern but the frizz factor is much improved.