Hi. I am going to record a concert of the 'Armed Man' in a large church. The main stereo pair will be flown above+/- conductor position (MC930/ORTF) A childrens choir of ~70 will be placed in a side aisle outside the pillars even but level with the choir/orchestra in the Nave. This choir will be angled towards the conductor in the centre aisle/Nave, so at ~45 deg to an imaginary centre line down the church. A pair of DPA 4015C (AB@20cm) are being trialled close up to the body of the main choir ~120 & behind the orchestra using a tall 4m cathedral stand almost touching the front row. I have been using the 'Sengpielaudio' visualisations (http://www.sengpielaudio.com/Visualization-ORTF-E.htm) To get some insight into the best arrangement of a pair of Rode NT55 mics in front of the childrens choir in the aisle. I will be trying to reference this pair to the main ORTF stereo pair. Am i at all correct in seeing/anticipating a narrower spread in the virtual field between playback stereo speakers as being easier to deal with/more convincing? than a wider localisation? Or: what is the best arrangement that will make life easier when trying to fit the childrens choir into the main stereo image? I am looking at AB 20cm spacing & orchestra angle of ~125deg does that make sense?