I've read through a bunch of existing threads and only got more confused! My guitar is a 2016 with what I assume is a pinned bridge. Radius is 12”, I believe. I can't investigate yet because I already have another guitar torn apart, and one at a time is enough for me. When I dig into this one, I have some fret polishing to do as well as a fretboard cleaning. Currently, the stock bridge isn't working for me, and frankly I think they're junk. You can visibly see the bridge ‘rocking’ when using the Bigsby, and the notes instead of popping off the saddle just sort of pffft. Does anyone know what the factory measurements are for post and string spread? I measured 2.875” (73mm) and 2.0” (52mm) respectively. And and all recommendations and suggestions are appreciated as long as it applies to the 5420 only as I'm not familiar with other models for comparing and as stated earlier, I'm confused enough already!