call me crazy...
but given the noise floor of the average "jam band" taping environment...I think one could VERY safely get away w/o using shock mounts at all...and never hear a difference.
EDIT:
i totally disagree 100%
before getting my shocks a few years ago, the 480 would pick up A TON of unwanted rubmle and wahtnot, i would NEVER run w/ out shocks again unless i completetly had to
I disagree 100% with bean's 100% disagreement
I run shockmounts 25% of the time. There really is no NEED to run mounts for what we do, unless, as nick said, you are clamping to a fixed part of the room. It can't hurt to use em, but i don't think they are a necessity.
ymmv.