I recently bought a Chadwick hybrid from a forum member and I've decided I'd like to swap the red Spiros for something different. I play mainly bluegrass music, meaning mostly pizz with very little bowing although I'd like to – and need to – bow more for intonation practise and experimentation. After hours of reading I've nailed my choices down to Polychrome or 140B (both of the Innovation brand). The 140B seems a bit more resilient for folding basses, while the Polychrome seems to have better tone but uncertain resiliency for folding. So, what would you recommend and why? EDIT – I bought Polychromes and reviewed them here.