Too much Silica or Alumina
Too much senitizer -- at first it doesn't seem as if you have enough but it does tend to spread out as you coat.
Not brushing long enough, you need to go to the matte stage and then more. At least till it squeeks and then some. It is strange but it seems like you really need to brush it in.
So I suggest starting with a small amount of silica, being careful not to get too much sensitizer on, enough, but not where it gets sloppy, and brushing the print until it is matte and then squeeks, and then some.
I fully agree with the matte look although I've not heard it squeak.