Vinterp not working, despite my best efforts

so after a long, long ride, I got it almost working. it does blend, and I believe in this effect. but I still have one issue; right here


im forced to make the player controller my target, and because of that, when I click aim it goes from my feet to the aim camera in the pistol, and release I go from the pistol to my feet. im so close. how do I make the camera or a certain point in the mesh the target like you have?