Tuning is a tough thing, mostly because drummers are looking for a certain kind of sound, and the tuning and shell type makes it that way.
Pearl Exports are damn good drums for the money, but they don't give you many tuning options. Try to tune the lugs, tapping lightly on the head at each nut. Until the tone is aproximately the same around the head. Then do the same for the bottom head. After all the drums are done, go back and match the pitch of each drum ring with the pitch of the bass guitar strings, keeping the lug as even with each other's tone as possible. (eg: Floor tom to the low E, 13" to the A, 12" to the D, 10" to the G -- or whatever corresponding tuning you guys play in.)
Once the tuning is correct, use Remo "zeros", or Aquarian "rings" set on the top heads to help muffle excess ring. Also, some electrical tape fastened un a "u" shape under the bottom head also helps reduce ring. And as a last resort, buy some feminine napkins, cut them in half and use the adhesive side to stick them on the top head near the rim (out of the way from being hit, of course) It takes some time, but isn't your recording worth it?