You probably have too large of gap between the Robo and Slash...something like a Delta or Arsenal Reactive would fit well there.
Also, the Orange Slash/Desert...if its true dry, you want the Desert!
Last point, I have not used a Robo yet, but the GP2 is a heavy oil handling ball. It SHOULD handle more than the Robo due to them using the same covers, but the GP2 having a medium load of particle and the Robo having a light load of particle. If you don't have a true heavy oil condition, then the Robo should be just fine.
If you have any more q's, please write.
Clint
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Clint Daley-Owner
Lets Go Bowling Daley
Inside Hunt Club Lanes
Salem, Ohio 44460
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