Hi, I will be doing the sound recording for an upcoming "making of" of a large BluRay concert production. We want to be able to record as much talking amonst the artists as possible, whilst not disturbing them or their mood. For this project I will use a normal boom microphone where applicable, but I would like to be able to drop a boundary (layer) microphone/pressure zone microphone on the table without much ado where the situation calls for it. Being mobile will be essential, as we have to follow the musicians around. Thus, having less equipment will be easier and also not having to connect different mics to my mixer. I will be carrying two Sennheiser wireless lavalier microphones. My question is: Can the effect of a PZM be achieved by simply laying/taping a lavalier mic like this http://www.trammicrophones.com/images_/tr50b-acc.JPG on the table? Or will I have to bring a true boundary mic with me? In theory, an 18kHz sound wave should be about 1.9cm long. The lavalier mic is probably 0.5cm high. Thus, I should be able to catch all relevant sound without it being reflected away and not get any reflections from underneath, correct? Will the microphone's omnidirectional characteristics mess my sound up? Thank you for any help!