I find the best way after alot of experience is to do the opposite of what you wanna do (haha hard to understand i know). I have to akwardly wedge it in, using alot of force with something like a pencil head. Im using a vapor brothers hands free whip tho. Hope that helps! I know it must suck!!
edit: nvm, haha im baked. Totally didnt get the title of the thread at first