I wouldn't try it. Beer is much more likely to finish at a projected FG, and I don't think I'd even try it with beer. Cider would be more likely to finish at any FG from .990 to 1.018, causing overpriming or undercarbonation.
If you're very experienced with doing it with beer, then I could see the temptation to do it with cider I guess. I would never do it with beer, so I would be even less likely to do it with cider.
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