I would say you don't need it every oilchange, but I would have yours done if you have never gotten a sample read. It's actually pretty cool how it works and will give you more knowledge of oil.
Blackstones average wear particle readings come from oil with 5200 miles on it.
With that said I would run your motorcraft for 3k then send a sample. Everything should show low or good on your sample. If this is the case let your next drain go to 5K and send in another sample and see what it looks like. The do a sample every 10k.
Check them out
blackstonelabratories.com