Well i just finish watching "Keith Ciaramello" Rotary Machine Reviewed 3 hour video
and it was very educational it was filmed by himself so it was a little comical but good indeed.
some machines in reviews:
-bishop's
-neo-tat's
-stigma's
-dragon fly's
-neuma's
-swiss
-swash drive's
-stelth's
-ink jekta's
-hawk's
-chinese crap, lol
and the TTech's Cartridge