I would say some acoustic treatment, especially directly above and around where you place your drumkit, would definitely help out. But first mess with the placement of your mics. Try spacing them out farther away from each other and raising them up higher. Also you could try angling them a different way, use them to pick up the entire kit for a good stereo image. Mess with what you've got and see if you can come up with what works best. Good luck, jonnn