I've done both. Swimming out to me seemed to work the best, but after she swam to me and realized what she did, she freaked out, swam back to shore and cried until I came back and wouldn't do it again. When I throw a toy in the water, she just cries until it floats to her. Its a trip watching her though, she will lean out as far as she can while keeping her footing, then she'll take one step too far and her back legs just stick out to the side, her head sinks, and her tail starts flailing around.
It sounds like it's just gonna take some time for her to feel comfortable. It might be the pit bull in her. I haven't seen too many of them swimming the lakes.
One other thing you might try is to hold her in the water while she's relaxed. Then give her a shove away from shore, but stay between her and shore. Catch her when she tries to swim back to shore and repeat.
Mike, swung by the pad yesterday afternoon, you were out. Saw the pup... got big!
Maybe that's because I was watching cars go around in circles at Talladega. Sorry I missed you. {toast}