I like my HFNs a bit better than a K&K but I've had plenty of K&Ks over the years and I think they are both good choices. A basic EQ pedal or ToneDexter doesn't hurt if you are particular about your tone with either of them.
I'm keeping these EQ pedals in my guitar cases lately for that unexpected opportunity to plug in. Maybe not audiophile bliss but cheap and effective.
https://smile.amazon.com/Guitar-Anal...t_sims?ie=UTF8
However, I really hate puting Cyanoacrylate in my guitars.
In particular, my RainSongs have a woven CF surface on the insides which would make the classic razor blade removal of a K&K not feasible. And sooner or later everything breaks or becomes obsolete.