i just learned something amazing today regarding optimization on 3d models thanks to badspot.
i was messing with the hammer model and i had to go back and edge split everything because i accidentally removed all the doubles and doing the extra work doesnt bother me
so i go to select this part and i notice these quadratic figures aren't split into two triangles

upon further inspection its actually a cone inside

thats 8 less faces. i'm gonna start doing this now