Hash Micron Mixing

i mixed my 73 and 45 micron hash together, and its wonderful. I was woundering if i should mix my 25 micron with it? Any one with hash experience feel free..

I do it although I think I read somewhere that the 25 bag is actually crap, like mostly broken tric heads and other superfine contaminents.
Still I do it anyways.
I also dont have the 45 bag though. Id say burn some pure and as long as it burns as well or better then the bag above it itll be fine.