Filling stop tail piece holes

[Chiin]

Lukas - I'd look to get some dowel of the right diameter and use some tightbond or other PVA glue to fill the hole (being very careful not to get any on the top if you want to stain). Downside is that anything visible will not be covered by the veneer / top of the guitar and you'll see the end of the dowel.

Thanks Brendan,
a freind told me pretty much the same. As most of the dowels will be covered by the Bigsby annyways the asthetics of them will not be that much auf an issue.

[FrankenWashie]

Thanks Brendan,
a freind told me pretty much the same. As most of the dowels will be covered by the Bigsby annyways the asthetics of them will not be that much auf an issue.

The end grain of the dowel will likely show up much darker under your final finish coats also, so you may end up with Avery stark contrast. Depending on how handy you are with paint, you coul try to blend them to the surrounding wood.
Your build sounds very interesting, please post some pictures if you get a chance 😁