hey,3 years ago i bought the sennheiser mm550 and i had great time with those but they are about to see their final days . i decided i should switch to iem's and i need help choosing a pair. by the way . i play drums for 9 years and i take music very seriously (as all of i guess). ilike balanced sound and wish i could work with them as an professional tool as well. and one more thing i forgot, i would like a good Chanel separation that i could hear each instrument individually. thanks in advance . by the way , i found shure se535 for 370$ , should i get those?