CAT (Crazy Angler Tackle) is a good source for sickles they have a custom #12 that is almost the same as a #10 - great little hook. We get a lot of stuff from Shorty's also.
Capt. Hooks and Shorty's is great source. I fish some tournaments with the guy who runs the place. Never seem so many hooks in my life. Every color and size. Some so all you can't hardly see them clear up to some the size of my arm. Great small town business.
Forgot to add most every hook and all sickles go through Capt. Hooks doors at some point. They get them in bulk and I mean very large qty and they sell to other distributors and dealers.