DCA is a suitable pattern for bitcoin accumulation on a gradual process, so i don't expect for this strategy to work perfectly than with bitcoin which was the intended coin, as for altcoins, i will not advise to use this like that, because not all of them this same pattern can work for, as some will fall and hardly rises, if we look at it from the other aspects we could afford on, then we should invest base on the amount we can be able to lose, if anything strange happened along with the altcoin we have been investing on.