Well, Harvey, you rock. This thread should be a sticky. I think something got glossed over in the process, although Alan expressed some concern, others intimidation. Just how do we get the GC chump salesman love us, and actually put up with our shit? I went one step further- found the salesman who was willing to *do* a similar set of tests, just to match up the store's inventory as best as possible.
They say before you meet the handsome prince, you must kiss a lot of frog. Before you find a salesman, you'll probably go through a bunch of wanna-be's.
In most big GC or similar, there's *somebody* who has a clue. You have to find that guy, and find out his hours.
Next, you must actually be somebody who will buy the damn mic when you're done putting the salesman through his paces. Harvey's suggestion that you do not do this on a busy Saturday is dead on. I would make an appointment for something like that. I find it convenient to test using the Korg PXR4 Pandora and a phantom power supply. I use the omni electret condenser in the Korg as a reference point, as I'm very familiar with it. That keeps the whole rig attache sized, with a desk stand.
My main point is that it is greatly to your advantage, as you invest in gear, to get on the good side of a gear salesman. It works both ways. He has to make deals and let you really check out gear. You actually have to buy stuff, because it feeds his wife and kids, or at least his pet Mako shark. I have learned to value the work of good sales staff, like a great waiter. The hard part isn't testing the mics, although this thread rocks as a tutorial. The hard part is earning enough respect so they'll let you do it. Sorry, but money does help. They are in business to sell gear.-Richie