Can't fully utilize the 4 servo wing on the Futaba 7CA. Nor can you do two servo elevator. Nor does it do CROW. You need a 9C for that. I don't even think the Eclipse 7 can really fully exploit what the ultra stick can do.

Futaba 9C, Multiplex Evo 9, Airtronics stylus would handle this nicely.

Here is a discussion on computer radios that may help explain. Goes into 4 servo wings about half way through.
[link=http://www.rcezine.com/cms/article.php?cat=&id=65]comptuer radios and 4 servo wings[/link]