“This may sound superstitious but this rosin is just so unbelievably amazing that it’s like my secret weapon in sounding better than anyone I play with. Prior to this rosin I had Melos which was good but nothing close to the brilliance in sound I get with leatherwood crisp. I have used this on my kids violin bows and their playing sounds less crunchy. I use Larsen strings and with this rosin I feel like I could be the next yo yo ma or tour with the 2 cellos. Make the splurge and buy it!!!!!!”