personally, i would look across the EBI lineup, not just columbia
i have some of each right now
I would also suggest to buy maybe 2 balls first, 1 stronger, 1 weaker and then fill in the gaps from there, there is so much you can do by altering surfaces alone
i have the Columbia Disorder which is the replacement for the Outburst (which was a great piece) ball is strong and rolly
I also have the disruption which is weaker, cleaner and rolly
the orange eruption pro didnt work for me, the black one is much better for my game
the EP hybrid is a great medium piece
For my columbia pieces in order of stronger to weaker (remember, surface can drastically influence the motion
Disorder, pin in middle finger, 2000 dull
EP hybrid, pin down, factory finish with 3000 pad applied by hand
EP black, pin above bridge, factory finish
Disruption, pin delow bridge, weight hole on PAP, 2000 + polish