Profit-switching is useless if you do not immediately sell the coins you mine. (Pretty impractical to do yourself for CN coins, due to the relatively high tx fees.)
If you want to make bank on surging CN shitcoins, try the moneroocean pool. It does algo switching for you and immediately sells the shitcoins for XMR, so you dont have to bother. (For them its also practical, since theyre trading higher amounts, obviously.) Only CN7 coins, though.