It is good to buy the dip of the coins who are reliable .Buying the Dip of startup altcoins that is under development which has not gained stand yet is not advisable enough. As for me , i calculate a lot when i want to buy the dip . I always ensure i buy only altcoins that is not above 25th rank in coinmarketcap.com and this has been working well for me.
Now have dip but we don't know will there are have new dip again after bitcoin not stable and keep crash above $43,000, without bitcoin keep break out above $50,000 again too risk buy back many potential coin right now, when bitcoin keep crash again we got new dip for many altcoin although good and potential coin. Waiting for break out and when bad news SEC commission investigating with coinbase exchange.