I guess I've had a bit of a red flag dealing with Red Arrow. About 4 months ago, I placed an order for Aerotech SU and Reloads via the website. (An earlier order had gone through with no problems.) After about three weeks and the order not arriving I called and learned that the order had never been shipped because some of the items were not in stock. Then there was a further delay of over a month due to problems that Red Arrow was having with their local post office. (Note that my credit card was charged when I had placed the order nearly two months earlier.) Finally, when the order arrived there were some items not shipped and not on the invoice, plus one item that was on the invoice, but not in the box. The matter took at least three phone calls to straighten out, but in the end, all was resolved very well (I got a credit on the unshipped items, which I spent on additional motors.)
I will order from them again, but only by phone, so I can make sure that all items are in-stock. And I would follow-up with another phone call in a week or so, just to make sure there are no problems in shipping.
George