i hve been considering buying some decent in ear monitors such as shures or similar and then putting on heavey duty defenders or DT100's (with no lead

) to get the audio seperation so i can really hear the difference when adjusting mic's with a loud drummer playing or moving mics infront of cabs etc ... any experience of this?
am i and idiot for thinking it? or will it do the job?
basically i hate the sound of dt100's, they're useless except for seperation for the drummer and lack of leakage when doing vox... i love my dt250's but i cant hear clearly in the room with a crazy drummer rattling around..
what you reckon?