WOW. Well done! That looks very nice. Great shine as well. You should be really happy with it.
Out of interest, did you use the good kit strings? I have not heard of the tailpiece needing to be filed before!
Yeah, both the good strings and a new set of daddarios. I think I fixed it though, just had to file inside the tailpiece a little bit to get rid of what I felt like was a sharp corner. Seems fine now