My pro shop keeps pretty up-to-date on Brunswick, Columbia, Ebonite, Hammer, Storm and Track -- they have most of the other companies, but these are the most prevelant in our area. Unfortunately for me, their Roto stuff was a couple months behind for a while. Stopped in at the end of July and they had the Oracle and Super Sonic already which was kind of a shock!! They've told me they're the 4th or 5th largest ball supplier in the country, so I imagine that's why they have at least one ball of most of the models available.