I think the slash is a stronger smoother ball.
I have only used Hyde polished and it will jump!
From Columbia their best wet dry ball is advertised as the Uturn Particle.
An older version of almost same ball and often found cheap is the Formula.
Also for wet dry this great link where they indicate many of their strongest balls can be used. Last week in a house that is extremely wet dry but when you play the shot as outlined in the link I will give you. The big backend Icon2 looked great on this shot. (similar to formula...just bigger backend).
Link for wet dry.
http://www.columbia300.com/interact/atx.cfm?id=1033&page=2Note recommendation for this article is the very strong reaction Roll.
I have not used that (for wet dry) but I have used the Icon and Icon2 in tandem depending on how much backend I've needed. Note the wet dry in our house is SEVERE on the left as it never blends out.
Hope this helps.
I am drilling my Formula this weekend to compare to Icon2 I used this week.
REgards,
LUckylefty
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Proud owner of a 140 first game average this year! Don't bowl me the second two games though! (two warm up balls in league..thanks proprietors)