I have saved part of this thread for my personal research. I am in no hurry.
I doubt I will cut holes in sides however. I have seen clamp solutions that seemed attractive and functional, non-damaging, and I believe those were cardioid solutions. More $$ tho - but not sure, research ongoing.
thx.
I also like specs on hardware; esp. when I learn what the specs mean. The picture gets clearer after a while; hopefully the sound will also.