We're constantly asked about upright / double bass strings, and are on a constant project to match up the basses in the showroom with strings that show them off at their best. As jazz players, classical players, and period-performance players, we have personal experience with a large number of brands on a wide variety of basses.
Quantum Bass Center's Guide to Rosin -
We are staffed by insatiably curious bassists, and yes, we give a thorough trial to anything that may offer even the smallest advantage to the challenge of playing the bass. We've tried every brand of bass rosin we can get.