I had about the same experience as @faithie999. Except, I got it to magically slip in twice, once for a dry fit and once for the final install. Don’t ask me how it happened, because I have no idea. Interestingly enough, despite the difficulty I had trying to get it in every other time, once it was in, it was a loose fit. So much so that I was a bit concerned about the ‘peanut butter’ ending up on the other side… so I made it a bit ‘thicker’ for that fillet. 😉