On the advanced page, do you have the accuracy slider (or whatever it's called) all the way to the right? Drumagog does a good job for me when it's there, also, go into the visual viewer and make sure the hits are reaching the threshold. And finally, I'll ask, are the hits very defined? For some real fast stuff, I'll go in and manually place trigger points so Drumagog basically can't mess up. Are you having trouble with kicks? Snares? Toms? Or all of the above? One last thing, make sure the resolution is on Auto. The resolution is the the time Drumagog allows until it triggers again. Since you say 16ths at 150bpm, this makes me question the resolution. You're probably aware of it, but check it out.