There's no audible difference between signing "she's said" and "she said", the s's blend together. Any possible difference would be entirely obscured by stylist

There's no audible difference between signing "she's said" and "she said", the s's blend together. Any possible difference would be entirely obscured by stylistic choices. Even vocalizing normally the difference is hard to tell. Try saying "She said I love you" vs "She's said I love you" – unless you make a point to completely stop in between words there's basically zero distinction.