I know Dave well actually. If you are coming to Stockton, I'll go $50 on the ball.
I have way too much stuff to list here. Mostly NIB but some single drill stuff I would be willing to trade. Honestly, I'm not interested in trading premium NIB Balls for a single drill ball, but I have some lower end ones I would trade. NIB: Morich Solid Leverage, Morich Frenzy, 900 Global Break Point Pearl (don't have original box), Ebonite Curve Ball, Rotogrip Darkstar, Hammer Grind.
Single Drill: Legends World Class (Blue, currently drilled Rico), Track Rising SE, Lane #1 Gemstone, Lanemasters Buzz, Lanemasters Hornet, Ebonite Hardball.
Let me know if any of those interests you.