Agreed with what's said above. Especially if it's a venue you've been to before, if not it's worth checking out the venue for a free or cheap show and just check the layout of the room, even talk to the owners about taping, some guys will restrict where you can tape from. Example, i was in a long narrow room and he made me set up in the corner, terrible place to set up, wall right behind me, sound just bouncing around at all angles. So it never hurts to check out a venue, small club ect. before hand.
That being said, even some of these small mics do a damn good job open taping. I open tape and used to stealth with my 853 set up all the time, don't really stealth anymore, but they still sound great flying high on a stand. So it's not a bad idea to get some AT853's or Church CA-14's that you can tape with in both open and stealth situations. Because even if you upgrade mics for open taping, which i have, you'll still use those 853's, church mics along the line. My 2 cents
Nick