I'm glad to see others are using large diaphragm mics.
I found that the 414 XLS is extremely good for taping classical guitar and at a further distance they sound amazing. Because first and foremost I want to record classical guitar I'm exchange the 415B stereo pair and a 414 XLS for two XLS stereo paired mics.
The distance and everything I believe they will work well for recording and everyone uses small diaphragm condensers I want to do something different.
edit: I wasn't sure if they are preferred for taping concerts. I found that the 414 XLS recorded a classical piece I monitored very well I had pops due to an out of date driver. I've done more reading and they are often used for choirs etc., and given the way they pick up acoustical sounds at a longer distance I am betting that they will work very well for taping.
I got lucky sweet water is really working with me. And everyone uses small diaphragm condensers every jazz guitarist uses a hollow body - bad analogy because that gives the sound but I do want to be able to do my own thing with taping.
I'll be looking into stands and stuff soon clamps, i have to do more reading in a dense book for me - "Practical Recording Techniques" was a book used in a music degree program, and therefor it is condensed and watered down compared to this study on its own.
I never finished the class but this stuff gets just as complicated as music theory I am sure. By the end of theory it got so theoretical I was fed up with it, like abstract economics.
So I have a lot of respect for those of you that have this knowledge. Looking forward to learning from you all, or meeting at shows.