For rockabilly? To me, no, not even a little bit. Vibratos are for surf and assorted instrumental material. At least that's all I use mine for. I can't think of any classic rockabilly that prominently features a Bigsby (having said that, I fully expect to be proven wrong). If it weren't for the occasional Ventures/Shadows/etc. songs that I play with my band, I think I might actually prefer a hard tail or trapeze.