I use KIK the most and like it. I just got my first batch of Goex and it seems ok but have not had a chance to work up a load with it yet.
There is a difference in the granule sizes between the two, KIK 2f looks to me to fall in between Goex 2f and 3f and I think KIK 3f is a finer grind than Goex 3f.
Give it a try maybe you'll like it better than Goex, maybe not. The one thing I like about Goex is it's made in the USA so if I can find as good a load as the one I'm using now with KIK i'll buy American. Thats something we all should think about from now on IMHO.