I had the same question about Sparkalloid which I was planning on using for my cider.
Worst case scenario, it doesn't carb, you add some carb tabs after 2 or 3 weeks, and make a mental note to add a packet of high-flocculation yeast at bottling time... just like the pro microbreweries do.
In Process: Mango Beer, Homebrewers Pale Ale
Bottled/Kegged:Spicy Light Rye, Rice-adjunct Pale Ale, Mild Bourbon Porter, Roasty Stout, Basic Light Mead, Bourbon County Stout Clone
Up Next: Berlinerweiss, Chocolate Raspberry Ale, and American IPA