ah yes
Other than yesterday when I tried landing with it a few times, I literally don't think I've used DK's nair at all in leik a year.
Also, Falco is my current secondary, but I use him only for Dedede. I was thinking of picking up MK, Pikachu or ICs instead. I'll most likely go with Pikachu, since everyone knows the MK matchup and I'm too lazy to learn everything about ICs lol. Very few people play Pika/ICs too, which is a big plus). Off the top of my head, DK's notably bad matchups are Dedede, Falco, Olimar, Diddy, ICs, ZSS, TL, and Wario (though not really because of grab release shenanigans). With the exception of Dedede, all of these are completely winnable with the exception of ICs on any neutral not named Yoshi's Island or Battlefield. Pikachu can counter Dedede pretty well and does fairly decent vs. ICs, with the added bonus of doing really well against Falco too. I'd still have some trouble against Olimar, though.
tl;dr do you agree with my idea of picking up Pikachu as a secondary? lol