Hi Flyfisha l,
We are coasts apart so this may be of little use. Like you I also like shooting heads. For fishing streamers on the beach or rivers I have been using wf lines I have cut and custmized.
Airflo just introduced a new product called 40+ , which is basically a factory shooting head. They come in all sink rates and have heads that are 35 ft. long. Casting is brilliant! I'm finding that they are replaceing my full sink lines.
hope this helps N I