I found a lens I've wanted on MPB, at a good price. Seeing lots of positive reviews (including here on UHH) I decided to make the purchase.

I called MPB, asking to place an order over the phone. Told I can't do it, must use web. Ok.

So I placed my order on the web, then got phone call for "security clearance." Fine, I can understand that: it was a big ticket item, and nobody wants to be scammed.

After a few legitimate questions (credit card, shipping address, etc.) they asked if I was an amateur or a professional. Seemed odd, but I played along. Next, what would I be using the lens for? Did I have other Nikon equipment? Had I ever used any other camera brands? I answered, but said I found the questions intrusive, probably more for marketing than for security.

The order went through, but then 3 days later I got an email saying the order was cancelled because it had "not passed our security checks process." I called, and was told that while my credit card had been approved for the purchase, they wouldn't accept my order. I asked to speak to a manager, and was told none were available. They'd get back to me. 3 hours later, no call.

So I've bought the lens from KEH -- slightly more expensive, but no hassles, and much better return policy.

What is missing is in the question. What are the best practices? I am starting to sound like Paul of Chicago. First, start with a newly formatted chip in that camera by that camera. Second, until the data is captured directly from the chip and is uploaded in two places, do not format the chip. I am about to go on a two-week shoot with two cameras that are capable of exchanging cards. I will not format the chips even though backed up to the portable and external drive (2) until I run out of capacity on multiple chips. When I return home, I will upload from the saved chips unless I must depend on the portable for the solution. My Nikons chips show the name of the camera from which it came. This tells you right away, albeit small, there is a difference. You spend thousands on equipment and travel, not having enough chips makes no sense. FAQ - can you take a chip used in one camera and format it\use it in the other camera? Yes...no problem.