Haleivi,
That is correct though you chose gid hanasheh because it is not nosen taam-you could have chosen even issur that is nosen taam for example if you had a pot with 59 kizaisim of food and a kizais of treif fell into it and then another kizais of a different treif food (ie that has a different taste then the first kizais of treif) fell in it is kosher because each treif has 60x more than it and is mivatel its taam. However you can’t add it in intentionally because ain mivatlin issur lichatchilah.