From my perspective, you have three options - one of the "big guys" (North, Quantum, Ullman, etc.), one of the tier II guys (Sobstad, Harstick, etc) or the "online" shops.
The big guys typically don't build the sail anymore. They are built at a factory, and shipped to the loft for delivery, and depending on the sail, maybe some finish work. These guys have the ability to make all the sexy stuff, but you pay for it. The tier II guys are usually still making their own sails. They can't offer load path sails, and are typically still building a tri-radial or crosscut sail. To me, these guys represent great value. Then the online guys. I have bought a sail that way, and I was pretty happy with the transaction. And you will save money. But probably not the best bet for racing sails. You didn't mention where specifically you are. Sobstad MW in Rocky River, OH has given me some very attractive quotes, and is building a spinnaker for the boat that I am racing the Mackinac race on this year. His price quotes are very competitive with the online guys, and I am very tempted to buy a #1 from them. Guy's name is Rich Wilber.