behringer b2 vs sm58 - big differences?

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Hi there,
just bought one behringer B2pro condenser mic and one sm58.
I've recorded 1 vocal track using B2 and, soon after, another vocal track via an sm58. Listening the 2 tracks playback (muting one or the other at time etc) I was trying to catch major differences between the 2 mics but I did not hear many... is this normal? am I doing something wrong? the project (dp3) is 44.1/16bit . mic signal goes to UB2448 behringer mixing board and to 896HD from there... sound is great for both mics, of course. Just I thought I could find more noticable differences between the 2 mics
thanks