My experience with Vault is mixed. On one occasion they were very accommodating, selling me main spring I managed to destroy (my fault, I like to dissect my guns), for the used RDB I had. That was couple of years ago. My experience with IRG warranty was smooth, but understandably time consuming with shipping between ON, AB and FL.
@OP, I don't think a smith will help, you need a set of new parts, probably revised versions of them (or combination of them that would be able to fix the issue specifically in your revision of RDB) and this is the info KT doesn't share, prop because of liability they prefer their guns serviced by them or authorized distributors. I think RDB is one of few guns I bought brand new, specifically for the reason of warranty.
So then what are my options?
I asked my LGS and they don't even want to look at it.




















































