Nathyn H,
I think the R2S version is a better bait. It's softer, the detail is as good or better, and the legs are finer. Because it is softer, the hook up ratio is slightly better than on the Spro. The thing to do is take a Spro and massage it for about five minutes with your hands. This will soften it up, and it will perform much better during hook up. Also, the reason any of these frogs sink is because either a hole has been puched in them from the hooks allowing air to escape, or the area around the line tie has torn. You can use swim bait glue to kind of fix them, but these things do degrade over time.
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Mark