Hi,
I think you should forget about your theory about the link between the SA and the recall. For now, think of them as 2 separate things and deal with them as you would if they existed on their own.
For the recall: Call her to you around the house constantly, for a really really tasty treat. Like a bit of smoked fish. Garlic sausage. Different things - don't always use the same thing. If there are others in your family, give every one a little bag of treats and send them to different rooms or parts of the house. Practise calling her in turn and give her a treat when she gets to you. Try this same exercise in the garden too.
When you've done this for a week, several times a day, around your house...
Then take her out on a long line (not a retractable lead - a long line - the longer, the better), hold the end of it and practise calling her for the tasty treat outside too. (Every time you go out, you need to prepare a little bag of random tasty treats.) Don't let go of the lead yet. You might need to play tuggy with her and lots of other games to tire her out because she won't be off the long line during this week. If she doesn't come when you call, don't call again - just gently reel her in on the long line and then give lots of praise when she gets to you and immediately tell her to "Go play" again (or whatever your release word is). Don't give a treat in this case. Only give a treat when you don't need to reel her in, and when she comes to you of her own accord, immediately, after one call.
If all's going well, and she is 95% of the time coming to you, then you can drop the long line on the ground and let her trail it. And keep practising calling her for a tasty treat.
When you get to this stage and are 100%, you can either cut the long line progressively shorter so she doesn't notice that she's suddenly free, or you can take it off entirely - this depends on the dog and your judgement.
Don't ever call her more than once, because you are teaching her to ignore you or you are teaching her that she is allowed to wait for 5 calls before coming, which she is not.
It's about managing the environment so that she can't learn it's possible to run off, with a long line, while all the time drilling her into coming when called by giving her a good reason (tasty treat).
For the SA, here's a link:
http://www.clickersolutions.com/articles/2002/sa.htm