I have yet to drill any Big Times, but from the specs alone, with the Big Times particle in the cover, it will probably pick up a roll a bit sooner while the Delta, using the Goo LS(long/strong) cover and the densest flip block on the market, will get down the lane better and more than likely flip harder.
Also, with the dense mass bias, you can tune the overall ball reaction with where you place the mass bias on the Delta, you can't do that on the Big Time.
The Delta, as is the story with all of Track's equipment, takes cover changes VERY well and you can adjust your ball till you find what you want.
Clint
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Clint Daley-Owner
Lets Go Bowling Daley
Inside Hunt Club Lanes
Salem, Ohio 44460
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