[mind_drummer]

Use the good term though

Outside = reso
Main = batter

If you have the Ebony then they may really be ambassador or if you have white circles on them, they are pinstripe. Are those on batter side or resonance side ? If they are batter, well I see no prolem keeping them and replace only the reso. If you still have the stock reso on your bass drum reso, then you should eventually plan replacing it too or place your batter on the reso and buy and good batter like a PS3.