I replaced mine with the marvel solid..but thats not around anymore..i would love to say the iq solid..but i am yet to throw one...
I picked up a outlaw for 85 bux on clearance on bowlingball.com and it is surprisingly strong...it doesnt give me the hook shape i love with the dimension continuum core..but its damn close! it gets down the lane, and makes a strong move like the dimension, the marvel was "rolly", i feel the outlaw is the closest replacement for it...the outlaw reminds me more of the dimension than the marvel did..for sure.
You could always try that new disturbed roto grip ball...the core has some twists to it ...kinda like the dimension had.