I'm surprised you find it too heavy. My hair is easily weighed down and I find KCKT the perfect weight. I don't really need it as a detangler because my hair can be detangled easily with most conditioners but I like it as a leave-in because it's so light and doesn't make my hair heavy and greasy like so many leavin-ins with oils and butters tend to do.
I'd suggest using a much smaller amount and see if that helps?
*3B, medium/fine, normal porosity, normal elasticity, shoulder-length when dry.