I've had no experience with omnidirectional mics. I'm wondering if I can get some opinions. Recently I've been reading articles or books by people who have stated a preference for using omnidirectional mics on a solo voice when the space is dead enough and the singer is overdubbing. All I've ever used is the cardioid pattern, and I've been led to believe that this is standard practice for most modern pop and rock (which I would assume is generally recorded by itself and in a dead space). So I'm wondering if there's any major difference other than the following things (please correct any mistakes): 1. there is no proximity effect 2. reflections (which there are few of in a dead space) are colored when arriving at different points on the microphone. 3. the frequency response graph is altered slightly (often high peaks are exaggerated) Do you think it's worth buying a mic just to do an A/B with these two patterns OR do you think (in this situation) that the pattern is a such a secondary consideration after the type and model of microphone that I shouldn't bother obsessing over this? Do any of you habitually use mics in a particular pattern for vocals because you find that regardless of the mic, you're not happy with the results from any other pattern?