LadyW -- Even if someone else did throw urethane, you still wouldn't know exactly how it would react for you. In general, urethane will go longer than resin and arc instead of skid/snap. Take your plastic spare ball and get lined up for the pocket with it, using your normal strike release. A urethane ball will react somewhere about half way between it and your resin equipment. Urethane can be a very good choice for someone with low speed and revs, as your profile shows. Also remember that most 13 lb equipment does not have the same core that the 14 - 16 lb stuff does. Before you pay big bucks for a ball, check to be sure it has the core you think you're getting. You might get the same reaction out of a low or mid range ball. -- JohnP